When I started all this I assumed I'd need a doctor and some sort of therapist. Well there's also an endocrinologist, not mandatory but can help to have that type of specialist in addition to a general doctor. And knowing a psychologist can help, in addition to a therapist. Professional time can be expensive (with or without insurance) but surgeons in some countries require a signature from two mental health professionals before they will perform certain procedures. A signature from a M.A. (Master's degree) therapist, and a separate signature from a PhD level psychologist. So even if you don't see more than one on a regular basis, you may need to visit more than one to obtain the correct signatures. Depends what your plans are.