Screwed by mistakes

Well,my second exam is over ...after that ,it is time to face my nightmare..."receiving my results"....I did really badly this time....all my marks droped in every single subject...oh god...sad huh??:-( U know who is the main culprit for this??...me......i failed myself for making loads of stupid mistakes in my exam.....damn disappointed....i know this sounds freakin bored and lame but it really hurts man!!!.doin soo much of work and ended up failing ,I was really furious with myself..i kept asking myself what had gone wrong in me??!!!Lost my brains??!!urgh!!!!!!!!so frustated....!!wanna know what is the worst mistake i made??haha...i lost 12points just because of one "-" sig man!!!!total shit....really shit.......what to do????:-ojust hope for d best lor.....haha..