You're probably right that your mc can't take you on as an individual client. I don't know the guidelines around that. I only know one person who was in couples counseling. She wanted to continue with the therapist after her relationship ended, but the therapist wanted to wait a couple years, and then would agree only if the other partner was okay with it.

As for switching individual therapists, it really depends on what issues you have left to work on. From your posts, it sounds like your pain is coming from marriage counseling. Would it help to find another mc, rather than a new individual therapist?