It sounds as if you are going through a lot right now, and you are only 18 years old! It would be a good thing for you to be helped along by a counselor. Please consider this, as a way of gaining strength from your father's rejection and also a way of growing up. You have dealt with way too much in your young Life. Also be aware that teens go through puberty and are constantly on overload with hormones, which make everything very difficult to deal with. Your psych class is filled with those who are learning, not professionals. If it were me, I would not open up to them, but rather find a counselor and open to that person. Get someone on "your side" to help you through this mess.