My posting history here at Susan's contains a lot of doubts, fears, and insecurities. I started posting here late last year when I hit a wall and my wife begged me to go see a gender therapist again.
I've been on HRT for 8 weeks. I had doubts and fears before starting, and I have doubts and fears now.
For me most of my fears and doubts revolve around the impact this has on the people around me, and their relationships with me. The potential dissolution of my marriage, the potential that it will be harder to find employment, that I may lose friends etc. These things still weigh heavily on me.
There are some "internal" things I am still having to work through though. Like looking in the mirror and feeling both excited and scared at the same time as I see my body change. I'm probably feelings doubts because of what these physical changes mean, and just constantly asking myself, "do I really have to do this?" repeatedly. I always come back that I know no other way. The idea of living as a man again fills me with despair.
This being said, being full-time and on HRT also gives me the luxury of contemplation apart from my horrible dysphoria. In terms of that I am "cured" - this indeed removed my dysphoria completely. Whereas before I was driven forward, somewhat kicking and screaming, by my depression and dysphoria - now I feel "better" and so my thought processes have changed. HRT and full time has made being a girl just "normal", there's no "thrill" in it per-se, it's not "fun" (it's nice, but it's not like how I fantasized it would be as a child for example.) But I've also realized that I don't "feel girly" necessarily, I just feel like me - for the first time in my life. I guess "me" is a girl, but I don't think of myself first as a gender - "girl" is just one of the ways I could be identified. Before transition the "boy" thing hung over me like a rain cloud and I couldn't get it out of my head. I think this is how more cisgender people feel - it's normal.
Another thing is that HRT and full time totally works when it comes to curing my "GID". I sort of feel like the schizophrenic patient who, upon taking their pills, thinks, "hey, I'm feeling better, I guess I don't need to take these pills after all". I know what would happen if I were to go back to my old life, and so many people have said it here and elsewhere - that they stopped HRT for a while only to start again when GID came back.
But even as well as I am doing there are still doubts. I constantly question if I really need to do this - and most of the time I come back with a solid yes. Sometimes I feel confused. It's not easy, but I think that checking yourself along the way is a good thing, and having a therapist with whom you can discuss doubts helps a lot.