I'm really scared

I am really really scared.
I have my exams in about two weeks and I feel like I'm going to fail because of things going on at home. My parents are still arguing and it has been about 3 days. My mother has now moved into my room and because of that I can't sleep. Like at all......I stayed up all night because of how much I couldn't stop thinking about it, and now I'm contemplating sleeping in the living room just to get some sleep :S
I am so shit scared that their problems are going to ruin my chances of getting into university and I can't bear another year at home. The thought of another year here makes me get into a depressive state and I know for sure that if I do, I will get depressed.

Trying to revise for upcoming exams and having to deal with their crap is something I can't sustain any longer :S Bloody hell, I just couldn't take it, if I had to live at home for an extra year