I gotta disagree with J-Dubb.

kotton-mouth, here is what you should do.

1. Read the stickied thread in this forum entitled Dilution: Tips and Guidelines. Follow the instructions there EXACTLY the morning of your test and hopefully, you'll be fine.
2. No point in drinking water in the days leading up to the test. It's pointless.
3. STOP working out for the next little while! While exercise will increase your metabolism and clear the THC from your system over the long run, the short term effect is to release that stored THC into your system. This would make you MORE likely to fail the test.
4. I hope this doesn't sound all parental or anything kotton, but I'm a little worried about you. Maybe you could switch your smoking pattern to AFTER school instead of before? You don't want to become one of those burn-out tokers that gives the rest of us a bad name. Prove everyone wrong, and show them that you can be a stoner but still a success in life. This means getting that anger under control and doing well in school. I know, I know. I sound like a public service announcement. Just trying to look out for ya though. High school can be a rough time - dealing with parents, teachers, and shit like that. But things can get better if you work at it.

Good luck with your test, Kotton, and let us know how it turns out.