Wow, school, again. This year is easier then last year (at least for me). I don't have as many hard classes. The only hard class I have is AP English. And yeah, it's hard, but you get through it. Stress is something everyone deals with. Even if they don't realize it. Some awesome stress relievers can be found at:
http://stress.about.com/od/generaltechniques/tp/toptensionacts.htm

Don't try and fight stress, it gets you more stressful, instead, deal with it with these. These are scientifically proven to help. So try it. Trust me, you'll feel much better.