have you thought of going to a career counselor to talk about things you may be interested in? they can give you tests to help locate interests and things you may be good at. you can take the Meyers-briggs personality test online and it typically offers career choices that are best suited for your personality type. is it possible to take some time off of school? would you go back? can you move out? set some small goals for yourself and I bet after you find yourself achieving them you will feel better about yourself and your future.