Hello,
It is good that you are putting an interest into this exam, by at least inquiring advice. I suggest that you get on task at this moment. You are not helping yourself by letting out your anxieties, and franticly searching for that miracle answer to your problem. Get on task. Do as much as you can, as the minutes are ticking away, and so are your chances for success. If you manage to study half, then that is half better than none at all. You shall at least be content with yourself for the effort put into this and take this as an learning lesson to be more disciplined. Good luck, and please tell us how you went about it, and how you did! GOOD LUCK!