It took me several years before I could even admit it to a therapist! I trusted no one with my secret...plenty of doubt, sure. But since I came out, I have no regrets whatsoever. There are still some lingering issues, mainly family acceptance, but I did what was right for me.
But that is me, and you are you. There is some regret in the community, and people don't always like to talk about it. Sometimes people waffle back and forth, transition, get scared, and de-transition; or decide maybe they are content by not going full-time, that's OK. I don't know where you are at in your life, but my advice is to test the waters. Go out in public as you the person you want to be. Once you gain more confidence in who you are, you will know what is right for you.