I think it’s not as simple as “you’re an adult, you are responsible for your own recovery”. I do agree that we are the ones who have to decide to walk on the path to recovery, however some of C-PTSD main symptoms are helplessness and hopelessness which one cannot overcome without the support of others. I don’t have any therapist, I’m not living in a country where getting a therapist is relatively easy, but I do have a supportive fiancé who understands my illness. That’s how I manage to get better from C-PTSD.

Obsidian, I’m sorry you have a bad experience with your ex-therapist. I’d try to find a better therapist. Not all therapists would treat you as bad as they did. Nothing you can do to change your family behavior, but for friends, you can always try to make new ones. I wish you all the best.