Ask your therapist to tell you exactly why he or she feels you are depressed. There is a book called the DSM (Diagnostic and Statistical Manual of Mental Disorders) and you can access it for yourself , on line, which would describe in specific detail what the criteria are for making a diagnosis of depression. There is more to this story...e.g., why you dropped out of school, and more than this. Your life right now sounds as if it isn't very fulfilling,and there must be more and better options for you. Having ADD can be depressing in itself for many reasons. And anti-depressant medications are sometimes used to treat it,, not just depression. You need and deserve some explanations, both from your parents and your therapist. Then, together, you can plan how to best get you out of the hole you are currently in. Good wishes, good luck, and by the way, I don't know if you were receiving any meds for ADD, but I'll bet this condition had something to do with your dropping school? Meds are considered the primary intervention for helping ADD folks, along with supplementary actions like structuring the environment, learning coping techniques and more.