Good luck man. Sounds like you're in a pickle. I'd give advice, but the only time I was suspended was for fighting and calling my princepal a dickhead to his face. If I did get caught with cannabis at school, they'd just like, "don't bring it to school. You're there to learn. Smoke pot after you've done the work."

Cannabis is okay with my folks. They smoked it back in the 70's but don't care much for it now, so it's always been accepted as a safe thing to do if I never stole anything for it, or start selling my possesions.

Good luck.