In many cases, however, depression means that years of therapy won't do squat, and life changes won't take effect, without medication. This also goes for ADD and a number of other conditions. Years of therapy never made a dent, no matter how hard I tried, until I got by chemicals balanced and suddenly it was easy. And after that I didn't need therapy, and still don't.

Therapy can be just as addictive as drugs, IMO. Especially bad therapy.