I'm getting rather
good at this exam stuff now, I kinda get the hang of this without freaking out neither my
nerves nor my
brain.
Here's a few tips if you need to fight stress during an exam.
Start off easily! If you've got some time before the exam starts, hang around and talk to friends. Don't worry about what's about to come.
Don't enter the room before you have to! Being early means you'll just have to sit even longer in the same spot.
Don't look at the questions! When they hand out the sheets of paper, if you've got a minute, spend it staring out into the air. Sit for 45-60 seconds before you read the questions.
Don't start writing right away! On most exams, you have multiple tasks. (Not multitasking) Read through all of them, find the one that inspires you the most, then start writing.
If you can't get started, don't panic! Here's a thing I learnt from a friend: When you've got a task that seems impossible to write about, make a map of your knowledge on the topic. You know lots of stuff, you just need to arrange it, or call it out.
Make a box in the middle of a sheet of paper, then insert the problem. Draw some lines to other boxes, like a DFD0 diagram, and insert key-words. Add more lines and boxes until you've got a set of key-words, and then arrange them in a disposition.
Use your time wisely! Spend 1/3 of the time making a rough disposition of your essay/project/article/calculation/experiment, then spend 1/3 perfecting it, writing the actual hand-in. Leave when 1/3 of the time remains, and impress the shit out of your friends. You can do it if you just find the rhythm and inspiration in your work.
Relax every 45 minutes! Stretch your back, your arms, your neck. You stiffen up somewhat while sitting in the same position all the time. Relax for a minute. Stretch, breathe, look around, then go back to the writing.
There are more ideas of how to fight your stress, but I can't quite think of them. Also check out Exam-preparations