I was so stupid

When I think back, I have prepared well. On my first glance at the questions, I was quite clear that I could  answer them all, honestly!

Shit.

I shouldn't have taken that for granted.

Folks, next time, bring your calculator into exams. No matter insignificant it is, if bringing calculator is allowable, just bring it!

And don't do decimal points division manually, or you're just screwed.

If I didn't get an A for this, I will retake this again, for God's sake.

Arghhhhhh!!!!!

P/S : Went to Alamanda, watched ZombieLand and all the bad feelings started to drift away. It wasn't that bad, but not the best -and that is quite bad. Shit.