I went to therapy for anorexia on the NHS, eating disorder service. I went in not wanting to recover and being terrified of eating. I was also extremely mousey, with zero confidence.
I came out transformed. Not entirely... I still struggle with the eating disorder, but I was at least able to keep my head above water eating with support from my partner (I'd previously just lie and refuse to eat), lots more confidence. Weight gained, etc
No idea how it worked. Think my therapist was just some kind of wizard. I initially had CBT but then he said he was going to change approach because CBT wasn't working on me. After that he mainly spoke about my family, etc.
I really wish I knew what he did but whatever it was, it helped. I needed more sessions really, but NHS limits them.
I'm back in therapy now, dynamic psychotherapy, basically having the sessions I needed before I suppose becsuse I broke entirely again.
Not seeing how it's working so far, it just feels like hassle in my week currently, but apparently this type of therapy is more of a marathon than a sprint. We'll see. I already know therapy can work somewhat from experience, so will stick with it.
I think having a therapist you click with is key, and having the right type of therapy.