Of course it does. Major clinical depression.
Have you sought treatment? If not, why have you wanted to put yourself through this for 9 years? Get yourself to a doctor, tell him or her everything that's going on, and ask for a referral to a therapist. A combination of medication and talk therapy is the best course. The therapist should be able to work with your doctor to find the right medication for you.
Edit: OK, I see you've tried therapy and medication, but keep trying. You may need hospitalization for a time, so as to get a more intensive evaluation.