What i hope for you is that you seek outside help right now to get clean, and find a motivation to stay clean other than your T. I know he suggested some stuff, does any of it resonate with you?

My T has told me many a time that therapy is very difficult when addiction is present. Basically that it is ineffective until the addiction part of it is a little more under control. Have you ever done NA meetings?

Because I think once you feel like you have a better handle on your addiction, and feel more stable, your therapy will be better.