Laziness

I stayed up all night, reading for my coming examination then it dawned on me.
What am I gonna do? My teacher says, "There is no short way to succeed." I betted my friends that I'm gonna be the best among the rest. I carry my backpack to everywhere I am going but this seem silly to my neighbors.

'Hey Snake! You're gonna kill yourself! You're gonna go mad from this...
Ain't you afraid of going mad? Millions of people are still doing better than you without doing these crazy things." said my friends.
Now I have got to show the the hell of me in the examination hall for I know that they will swallow their speeches words(speeches sounds strange in this context, I would use words) and vomit my pride (I'm not sure what you're trying to say with this?) when they get their pappers, I vividly know for sure that they will have no choice but to cheating....

Goo job! Very descriptive! Sometimes you have to push yourself harder than anyone else will!

My corrections may not be 100% grammatically accurate but it's more how a native English speaker would sound. 

I forgot a part!

"Now I got to show them the hell of me in the examination hall"

Maybe you can say "Now I'll show them all in the examination hall!" or "Now I've got to prove them wrong in the examination hall!".