I'm 20, but I'm only barely a sophmore... Because I drank myself out of school the first time... So I think I know a thing or two about fucking up (trying to learn as much about not fucking up now ). Anyways, doing homework high is better than not doing it, but doing it straight is the best (it wont be as easy to do, or to focus, but you'll remember it better)... I'm gonna have to cut back to almost nothing though, because its starting to get tricky... Calculus 2 and Engineering Physics I this semmester, Calc 3 in the spring then the real fun starts next fall...