Not to seen harsh, but...
Why ask?
I know how you feel. Really, I do. You are going through what we all go through. No one can validate this decision. We can support, we can give opinions and some
facts.In the end it all comes from you. I am 45, and started HRT two weeks after my 45th birthday. It had come to a point where I could no longer be a man. I never was. Reality was all that was left for me. I took the plunge, and now I am happy.
You want reassurances? We all do sweetie. There are none to be had. I want so much to make it better for people like us. This step cannot be outsourced. It can only come from within. 20, 30, 40 50, or 60, this is the one thing that no one can help you with. I felt thesame way, I wanted someone to say that it was ok. It is ok.

No one though, not on this site or any other, not a therapist or friends or family, can tell us how it will turn out.
This I can say with certainty, if this is the path for you, you will never be able to hide from it. It doesn't go away, we are stuck with it. You can waste another decade like I did, or more. If this is who you are, you can not hide. Believe it.
You are in your thirties, ok, would forties, fifties or sixties be better?
This question is asked so many times, by me and many others, in so many ways. The question really is,'Will it turn out alright?' ...
No one can answer that. I have been crying since I started a response. I don't know. I deal with the laughter and ridicule every day. Some people accept though, some people support. I stepped off the cliff, I hope that there is some form of normalcy at the bottom. For now, for once, I feel comfortable being me. That is enough.
I took the path less traveled, and that has made all the difference.
Mikaela