I have to study late tonight i have lots of work to finish and study for an exam. how can i keep awake during school?

Going w/o sleep: I hate to say it but I think you're caught between the proverbial rock and a hard place. Stay up as late as you can still function but do try to get some rest, say 5-6hrs. Some people drink coffee or some other form of caffeine to stay awake. Just beware that energy drinks aren't w/o risk. Of course, plan ahead to avoid this situation in future. But for now, consider some form of caffeine.GoodLuck