To reply to your comment about what to eat before an exam, you're right, bananas are great, because they're high in cabohydrates, which are fast acting and provide energy for your brain quickly. On the other hand, fats take longer to break down and contain lowers levels of oxygen in their molecular structure, so it's slower and less efficient at nourishing the brain. As for chocolate, I suppose a few squares might help lift your spirit mentally 😁, but too much of these kinds of sugars can send you on a sugar high but then suddenly your blood sugar levels drop and you're suddenly left feeling lethargic. Not good. Also, the caffeine might be a problem.

I hope this information is correct. I'm not an expert in this area, but this is the advice I get from teachers and from online ☺

I have taken many exams in my life as most of us have done it too. Everybody has his own routine. There were really good advice above. Of course it is easy to say that do not worry etc.. The night before one of my state exam I could not sleep at all. It was terrible. But in reality most of the time we overestimate the exams and we have many non-realistic anxious feelings and thought which is detrimental. My personal advice: Preparation is the key. The result will not be depend on the exam day but your preparation. I recommend to learn a lot(the best way suits you) but take breaks. Take 5-10 minutes break after every 45 minutes. You cannot concentrate in a high level for tooo long. Maybe you think you can but in reality it is impossible. Stand up move listen to a song etc. Drink lot of water and eat more magnesium during your preparation period. It seems to a small thing but it can help a lot. Sleep. Sleeping is a ubiquitous topic nowadays. You cannot skip sleeping. Learn hard prepare hard but relax!! 7-8 hours of sleeping is vital for good performance. And do some sports. Maybe you think it is a waste of time but error:D No:))) It is vital to be effective. I open a discussion about it:) Have a good luck in your exam:)

Here are some things you can do when get to the examination room.

When you enter the room try to find a seat as far away from the other students as possible; I prefer the back of the room.  Don't engage in the nervous pre-test chatter of the other students.

Close your eyes and start to quietly tell yourself that you will not panic during the test, you will remain calm, that if you find a question you don't know the answer to, you will just go on to the next, finish the easy ones and then come back and work on difficult ones. If you have extra time you will review each answer again. You will make sure you really understood the question rather than assume you understand it at first glance.

Keep quietly repeating these things to yourself, and realize there's no more studying you can do now, you just need to work in a calm and methodical way to do your best.

This method is based on the visualizations that athletes use before they start.

I usually do that🤦🏼‍♀️
Well, yeah, you're right. It's very important to eat something before going out (even if it's not an exam:))