First of all, welcome to the site. Access to HRT pretty much depends on your local laws and regulations. You will finds some places that operate on informed consent. You might also find GLBT-friendly doctors who do not require any sort of therapy, especially if you are living in your desired gender role.
With that said, and even though I believe we know ourselves best, it would not hurt to talk things over with a therapist. In fact, for many, it a very positive exercise.