Speaking from my own experience, this is excellent advice that I can't recommend enough.
My poor choices did not include drugs or other substances, but self-destructive overspending that led to financial ruin. This despite being a trained accountant and banker who runs his work projects and department very frugally (except for pay and bonuses - people deserve to be compensated for their good work). After a few sessions with a psychotherapist, she suggested seeking help from another therapist who specialized in self-destructive behaviors and addiction. While she did not think I was "addicted" to anything, she did feel some of the methods used when treating addiction would help me. She was right. The guy she sent me to specialized in working with educated, "successful" people. While I still struggle from time to time, he helped me tremendously. That said, had I started therapy when I first got myself into trouble I would have avoided the situation I found myself in.