Sleep late cause really BAD!

i don't know why this few days i cant sleep at the night.. i'm turning like last time again.. VAMPIRE!
and which fuck'up is i absent 4 class now.. i think i gonna get letter soon.. and my face getting worse.. need to sleep early + Drink alot of water + care my skin.. and i have to force my self to sleep early today because tomorrow i got Group Presentations For human communications..
have to wear formal.. i just borrow a tie from my sisters Bf.. and my slack pants was really tight.. long time didn't wear already.. have to wear it tomorrow.. 2 more group assignment to go,which is Visual Communications and Microeconomic.. I seriously hate micro..!! i dont know what to do totally..! damn it!