It's going to be tough.
Theres going to be groups that are obviously harder to be accepted in than others. Avoid these people. Look for friendlier, (probably uglier) groups. They're all just people, it doesn't matter what they look like.
In every group there is usually an asshole or just a "cold" person.
Suck up a little to them at first to avoid too much evil.
Remember, girls tend to be more accepting, there is usually only one or two girly groups that are the bitch cliques.
Otherwise if you're smooth and handsome you're in.
And hey,
you smoke bud.
You instantly have a large "clique" to go to.
Check out the bathrooms during class and speak to the people you know have the same medication as you do