depressed an more depressed

I think i am the failure of this family...they hope i could go to university, but now i think i couldn't even get to poly. I just don't want to admit that whenever it comes to exam, i get so scared. No one knows it. Oh god.. its O'lvl, not any small exams, it decides my future and i am slacking now!? I don't know whether i can still make up for the mistake i have made now, but i just got to try my best. My physic and chemistry can't affort to fail. Next three days-Physic, A-maths P2, history and chemistry. Today's A-M P1 is not gonna make it, i know it. So A-M P2 i am not gonna make the same mistake again. And my sciences, i think i can only concentrate on either one of them. Depressed and more depressed. ='(