Any good therapist should train you in the methods of coping with and eventually overcoming your problem. This boils down to private grad+postgrad psychology/psychiatry course, because to cope+overcome you have to understand what's going on and there is no one who can do shit but you yourself.

But that is only ~half of job. The other half consists of gently reminding one that not all is lost yet.

There is no LLM that can do this and I think there never will be.