What do I do about my pot smoking friends?

[Cairo]

I hate my friends. All they do all day is smoke weed, eat Hot Cheetohs, and drink Kool-Aid. They treat me like garbage. The only reasons they're friends with me is because I'm smart. They make me do their homework for them while they sit around and smoke. The smoke from the Marijuana seeps into my clothing. Every time I come home from my friends house I have to hurry and put on a new shirt before she smells the aroma.

I don't like these people at all. I don't even know how we are considered friends when the fact of the matter is I hate them. I want to get away from them so bad but they said if I ever stopped hanging out with them, they'd jump me everyday for the rest of the school year. HELP!!!