Originally posted by metalhead
Whatever you do, don't study the night before a test. On the weekend before finals, go out and live it up. Get lots of rest on Sunday, perhaps skim a few notebooks, spend a few hours reviewing old exams, and then get lots of sleep. Don't pick up a book from then on, just make sure to eat a few nutritious meals, and continue to get lots of sleep. Whatever you do, don't cram. Chances are, whatever you haven't learned by now won't sink in the night before the test, so just keep your mind limber and ready.
Do your hardest work in the weeks before your exams begin to make sure you don't have to study during finals week - you will do much better as you'll avoid the anxiety that 90% of students cause themselves by trying to learn things last-minute that they should already know, and a lot of students cram even though they already know everything they need to in order to pass.
Be confident when you walk in that test room - at that point, worrying is pointless, you either know your stuff, or you don't, and panicking will only hurt your performance. You'd be surprised at how well you can do on exams despite knowing very little about the subject the test is on if you have the right mindset.