No treatment plan, but I'm in psychodynamic therapy.

I've never come across anyone who does treatment plans except for one psychiatrist in the past. In that instance, a treatment plan was something we just quickly did to sort of get done because it was required to be in the file. It didn't seem to have real meaning.

I think it's a good idea to tell your therapist what your goals are, but I don't think a formal treatment plan is necessary for the average person. Might be helpful for minors (so that the parents can agree) or people who have guardians.