I went to a support group first, then saw an endo recommended from the support group, and then began HRT without a letter of recommendation (he used informed consent), which I don't recommend to anyone! I had been so sure about transitioning for many years before I started HRT, and I knew I needed to get started now, this year, for me and my well-being. The only therapist I had knew next to nothing about trans-issues, and it was very frustrating. So, in the support group, I was very lucky to start seeing an endocrinologist that our group facilitator sees, and voila, HRT.
If anyone has any doubt in their mind, I mean any at all, about transitioning, it is super-important to see a therapist first and do everything the normal way. I'm only now starting to see a gender-specific therapist three months into HRT. HRT has basically saved my life, and I have no regrets. This is what I am becoming. I know this is my path. That said, if I had rushed into things with lingering doubt, the consequences could have been drastic. Therapy is so important.