Well, I'm not really convince that you can be addicted to not going to class. There is nothing to addict you. I think it's just a case of you not really being bothered to do what you need to do, because you don't find it interesting. My advice would be to just think about the impact skipping class is going to have on your education. You are going to end up with gaps in your knowledge, which could lead to failing your exams. You could also get in trouble with your school.