I read your similar plea on the legal boards, and I'll repeat the answer here that I posted there. You're being BSed in a big way by that guy and you've left yourself wide open by even entering into such a deal with him. You're sounding suspiciously like an over-dramatic, hysterical kid ("OMG, OMG, OMG!!!") and I'm beginning to wonder whether or not your real goal is to BS everyone here on the boards.

If you really are an intelligent kid, intent on making good grades and getting into college and then medical school, stop smoking and making risky deals immediately. People are clearly going out of their way to take advantage of you.

I hate to be blunt here, but if you can't risk getting busted, there's a really simple solution to that potential problem. Don't put yourself into a position where that's even a possibility since you're clearly not very discriminating about who you do business with. These are choices you're making, you know, and if this situation is truly worrying you, perhaps you should stop making them. Grown-ups and people who are truly mature have to take responsibility for their actions. Welcome to the real world.