I would advise you like everyone else- to keep calm. But i mean it in a different way. I'm not saying 'it'll be fine' even though it most probably will. I'm saying that even if it isen't- it doesnt have to be. It's not the end of your life, it is just finals! if your nervous then your not one hundred percent confident, but you should be! When i have a test, i try not to be nervous because it actually doesnt help. i think 'whatever will be, will be.' and everything has a reason so you just have to trust yourself and calmly tell yourself that you'll do great! i get 60's and im not disapointed because i know i did my best. just do your best, dont regret anything and calm down!!!! Its not the end of the world. :)))