I think gideon is right when he said that somebody probably informed on you. If you dropped your classes, would you get most of your money back? If you would, then you could consider going to another school. If this is an option, then you could also consider living in a room or apartment when you go to the next school. It is not good when others have control over you.
If you would lose a lot of money, then you can weigh your options. If you went to those anti-herb propaganda classes and returned to school, then would you be able to leave after a semester, and still keep the credits and use them in another school?
Consider your options and search out the consequences of each option and trod how you think is best. I would suggest continuing with your education, if not in this school, in another. An education can make your life more enjoyable because of the type of work that you can choose to do, you just have to consider what work you desire. Also, make sure that you Live in the ways of Jah and are not performing a job that is against Jah.
Something that you can learn from this situation is that it is best not to Live under the control of another person. And learn to walk and not be seen, because their are too many eyes watching.
They look for fault when no fault is there. Then they invent a false law that is not the words of Jah, to trouble the Ones in whom they can find no fault.
Haile Selassie I