hard work that didnt pay off =(

okay, just done the subject international finance, i put tonnes of effort in it and yet myself ruined it cause of my stupidity,,, i even change into the right answer then so dumbly changed it back to the wrong one...what the hack.....felt like hitting myself on the head.... i didn't expect much, but just hope that i can pass this paper. yea i meant it...pass!! not the c+ or any stuff that i wished before entering the exam hall.Hell yea, my result gonna drop!!!!  grrrrr..............i wont let exam defeat me!!! i will stand up and fight once again after those tears =(