in the words of the epic main character in "animal house", "hey, I'm a zit. pppppttttthhhhhbbbbbttt", at which point the charming fellow explodes his half-chewed hamburged over his dining company by hitting his inflated cheeks with open palms.
that is all
Go and see a Dermatologist they can perscribe you some amazing stuff man.
Also diet plays a big role in acne. Try not to eat alot of sugar and deff no soft drinks or candy. Also alot of peoples acne gets flared up by drinking milk. Some people say fried foods cause alot of acne but as long as I dont eat it every day it dosent seem to affect me.
A last last resort would be accutane. I did it and regret it simply because im still having bad affter effects from it but I will admit my face is 95% clear and usually 100% clear but I ate a bunch of candy last night so I had a little break out this morning.
if you have seriously tried everything, see a pro