Mistakes are an inevitable part of the learning process.
But if you keep making the same mistakes over and over, it can be demoralising.
In this article, I share 12 common mistakes students make when preparing for exams, and what you can do to avoid making them.
But let me be clear, this article isn’t just for students and it’s not just about exams. It’s for anyone who is up to stuff in life. It’s for anyone who wants to keep learning and growing.
My advice is don’t read this article all in one sitting. Treat it like a practice exam: print it out, put your phone away, and work through 1-3 points at a time. Then, get up and take a fun rest break!
Are you ready to dive in? Let’s go!
Mistake 1. You leave doing your work until the last minute
Without a doubt, this is where most students go wrong with tests and exams. They don’t give themselves enough time to learn the content properly.
They leave studying until the last minute and try to cram as much information as possible.
How to avoid making this mistake:
First, there are a few things you need to understand about how you learn:
- Your brain can only take in so much information at once, and a good night’s sleep plays an important role in consolidating information (when you sleep, it’s like hitting the save button on what you’ve studied that day).
- Learning isn’t one and done. That means you can’t expect to read your textbook and have that information instantly transferred into your long-term memory. You need to revisit ideas a number of times over a period of time to make them stick.
- Deep learning isn’t usually a smooth and effortless process. It often feels like a struggle and requires a lot of mental effort (expect to feel uncomfortable).
Based on this, start preparing for exams before you feel ready, while you can still think clearly (i.e., you’re not panicking and freaking out).
Mistake 2. You are paralysed by stress and fear
Not all stress is bad. Stress can be a source of fuel and energy. It can help you focus your mind and swing into action.
But too much stress – the freaking out kind – can mess with your ability to focus and learn. If you’ve reached that point, where you feel like bursting into tears or curling up into the foetal position, you’re experiencing bad stress. You need to stop whatever you’re doing and calm your nervous system.
How to avoid making this mistake:
Start preparing early. The more prepared you are, the calmer you’ll feel and the better you’ll do.
Other strategies you can use to decrease bad stress:
- Try the box breathing technique or any breathing exercise where you slow down your breathing (e.g. breathing in for the count of four and out for five).
- Move your body (go outside for a walk or jog).
- Take regular fun rest breaks that don’t involve looking at a screen (e.g., after 25-45 minutes of study, take a 5-10 minute break).
Student tip:
“Be calm and know that you can do this.”
Mistake 3. You don’t do a ‘dress rehearsal’
Many students spend all their time leading up to their exams creating beautiful sets of notes. By the time they finish their notes, they’ve run out of time to do practice exams.
Notes can be super handy, but it’s what you do with your notes that really matters. Are you testing yourself with them? Do you create flashcards from your notes and test yourself with those cards?
The best way to ace any exam is to practise pulling information out of your brain. You need to test yourself (i.e., use active recall strategies).
Take it from me, this won’t feel as nice or easy as simply taking notes leading up to an exam. But at least you’ll be grounded in the reality of what you know and what you don’t know.
When your only exam preparation strategy is note taking, you go into the exam with a false sense of confidence (experts call this an ‘Illusion of Competence’).
Sitting tests and exams is also a skill. Whether you do well or not isn’t so much a reflection of your intelligence. It’s more a reflection of your exam technique and how well you have prepared.
How to avoid making this mistake:
Practise in the medium you’re going to be assessed in: do lots of past exam papers (ideally under timed conditions using pen and paper).
Treat it like you’re training for a marathon. At first, you might just do a 30-minute ‘exam’ workout. As you build your strength and stamina, work your way up to 45 minutes, then an hour. Eventually, be brave and attempt the full 2-3 hours.
After wrestling with some exam questions, make sure you check to see how you went (what you got right and wrong). Take note of any gaps in your knowledge, and give that content a bit more time and focused attention.
Mistake 4. You multitask as you study
Distraction is the enemy when it comes to learning. When your attention shifts rapidly from one task to another, you destroy your ability to memorise information.
Multitasking also slows you down (i.e., it take you longer to do your work), whilst speeding up your thinking. Fast and frenetic thinking is the opposite of what you need for deep learning. To deeply understand information, you need slow and deliberate thinking.
How to avoid making this mistake:
Before you sit down to study, deal with distractions from the outset. Put your phone away from your body, on silent in another room. Install an Internet blocker app, such as Cold Turkey or Freedom.
If you use social media, get someone to change the password on your social media accounts so you can’t access them during the exam period.
Do what you need to do to focus your mind for a short, intense burst of study (25-45 minutes).
Student tip:
“Put your phone and other distractions away while studying as this will benefit you in the future … however phones will destroy your future.”
Mistake 5. You avoid looking at the syllabus
The complex terms, jargon and the text-heavy nature of your syllabus can make it scary to look at. But don’t let those things put you off looking at this document.
Your syllabus is too important to ignore. Referring to this document will help focus your mind and save you hours of time.
How to avoid making this mistake:
Bypass all the jargon and head straight to the unit content section. This section tells you exactly what you’ll be assessed on.
Print this section out so you can easily refer to it without having to go on your computer (and potentially get derailed).
When you start a study session, choose a syllabus point and use an effective study strategy to make it stick (e.g., active recall).
Mistake 6. You delude yourself into thinking you’re studying
You spent hours re-reading your books, highlighting chunks of information and re-writing your notes before the exam. You can’t understand why you didn’t do better?
I’ll tell you why: you weren’t using effective study strategies.
How to avoid making this mistake:
Swap ineffective ways of studying (e.g., re-reading and highlighting) with effective study strategies, such as active recall.
You can practise active recall in different ways, including testing yourself with a deck of flashcards, doing past exam papers, and teaching a concept to a friend.
You’ve also got dual coding (i.e., using words and pictures to help you learn). I’m a big fan of mind mapping. In fact, I mind mapped my way through my undergraduate degrees in Law and Psychology, and my PhD.
Dual coding is a great way to understand new ideas and how those ideas are connected. But to make those ideas stick, make no mistake: you’ll also need to do active recall practise.
To learn more about how I combine mind mapping and active recall, check out my short online course, Let’s Mind Map!
Mistake 7. You sacrifice sleep to do more study
Entering the exam room (or any important situation) in a chronically sleep deprived state is a terrible idea. Expect to have trouble recalling information and focusing your mind.
Bottom line is: Sleep matters. It matters a lot.
This study found that students who participated in an ‘Eight Hour Sleep Challenge’ and prioritised getting 8 hours of sleep each night leading up to their final exams outperformed those who didn’t take the sleep challenge.
How to avoid making this mistake:
Make getting 8-10 hours of quality sleep a non-negotiable part of your study plan. Plug your phone into charge at least one hour before bed and don’t touch it until you get up the next day.
Remember, sleep is the ultimate performance enhancer. Everything you do, you’ll do better after a good night’s sleep.
Student tip:
“Sleep the night before. Don’t cram.”
Mistake 8. You push yourself like a machine and run out of energy
By the time you get to your final exam, you’re feeling over it. You’ve lost all motivation to study. You don’t really care how you go. So, you do the bare minimum to prepare. You go in with a plan to … wing it. But winging it isn’t an effective strategy.
How to avoid making this mistake:
If you’re running low in motivation and energy, do little activities to re-energise and feel normal again.
One student shared this piece of great advice that made me laugh:
“Study early, study late, and somewhere in the middle treat yourself to an $11 Medium meatbox from Kebab Lads.”
Perhaps an $11 meat box isn’t the best way for you to restore your energy. But that’s beside the point. The point is you must do things to keep your spirits up during exams.
Mistake 9. You study only at a screen
You’re asking ChatGPT to give you summaries of different topics and create practice exams for you, which you then do on your computer. Perhaps you steer clear of AI, but you type up your notes on your laptop.
The problem is if you’re working at a computer, you’re more likely to get distracted. As soon as it gets boring or difficult, you’ll find yourself running to the fun stuff (e.g., YouTube).
But there’s another big problem that often gets overlooked by schools that invest heavily in EdTech: the Screen Inferiority Effect. Reading on a screen and taking notes using a keyboard are not as effective when it comes to learning as using pen and paper.
As Dr Jared Cooney Horvath writes in his brilliant book The Digital Delusion:
“Learning doesn’t arise from the brain alone, it emerges from the rhythms, movements, and sensations of our entire physical selves.”
How to avoid making this mistake:
Invest in a printer and a big box of A4 paper. Print out your readings, past exam papers, the unit content section of the syllabus, any important emails, and your exam timetable.
By printing out these documents, you’ll shift from passively skimming to active reading. This will allow you to form a deeper understanding and stronger memories of the content.
Mistake 10. You study in the same location
Students who study in only one location (e.g., at a desk in their bedroom) sometimes struggle to recall information once they get into the exam.
Why would this be?
It’s because information is context-dependent. That means when we study in the same place, our memories become tethered to that environment.
How to avoid making this mistake:
Mix up where you study. You don’t need to abandon your desk, but don’t make it the only place you study.
Do some flashcard practice at the kitchen table, a past exam paper in the library, and explain a concept to a friend outside under a tree. You get bonus points if you can do a past exam paper in the actual exam venue!
When you practise in different settings, you train your brain to be able to recall information anywhere.
Mistake 11. You surround yourself with stressed out people
Stress is contagious. If you’re hanging around people who are freaking out about exams (saying things like, “I hardly studied! I’m going to fail!”), don’t be surprised if you start to freak out, too.
How to avoid making this mistake:
Before the exam, keep away from people or anything else (e.g., caffeine, too much sugar, and social media) that triggers anxiety in you. It helps to feel calm, steady, and grounded as you walk into the exam room.
After the exam, don’t waste time ruminating about it with your friends. This is a total waste of your time and energy. You can’t change what just happened. What’s done is done!
Instead, shift your focus to what you can control (e.g., taking a fun rest break and preparing for the next exam).
Student tip:
“Get in, do it, and get out!”
Mistake 12. You skim read and don’t read the question properly
I once met a law student who didn’t read the exam question properly. She was visibly distressed as she told me she missed reading the part that said you had to write only two of six essays.
What did she do?
She wrote six essays in three hours.
This may sound extreme, but mistakes like these are all too common.
How to avoid making this mistake:
Read the question carefully. Take your time. It will be time well spent.
As you read the question, look for clue words such as explain, discuss, and compare. These words have different meanings. They determine the approach you need to take to answering the question. Some students find it can help to rewrite the question in a way that makes sense to them.
Not sure what the difference is between the words discuss and explain?
Use effective study strategies, such as dual coding and active recall, to understand and remember the meaning of each clue word.
To sum up
No one expects you to be perfect at preparing for and sitting exams. Like any skill, this takes practise.
So, what areas could you strengthen? My advice is to focus on just one area.
If you need more sleep, then make getting to bed at a reasonable hour your top priority. If you want to start using more effective study strategies, spend 20 minutes creating a mind map or doing a past exam paper.
A few simple tweaks to your lifestyle and study habits can dramatically improve your ability to focus and learn, as well as how confident you feel walking into your exams.


























