I'm really anxious about taking the exam, what should I do?

One of the best things you can do to combat exam anxieties that I've found is to simply keep doing practise exams. The more practise exams you do under the same kind of conditions and the same time limit as the exam, the less scary the actual exam will seem, as you'll have done it so many times before. This may seem tedious, however if you stick with it, it will hopefully make the exam easier for you to handle.