Not fear of failure. The fact that I didn't feel genuine, and that I never will. Sure, I can get closeish, but that would still require taking estrogen for the rest of my life. I will always have a masculine skeleton and bone structure. My rib cage will always be huge, my feet will always be masculine (my hands actually looked very feminine after a few months), and the fact that i'd need a ton of surgery that costs thousands of dollars. I missed out on the most important years of anyone's life, and now I'd just feel like an imposter, like I don't belong. I would probably kill myself to set my spirit free.
Plus the feeling that nobody will ever love you. Sure there's people out there, but all the people I connect with are attracted to guys, many think I'm cute, but I wasn't muscular so then it's a no a lot of the time. I'm highly attracted to lesbians. A lot of guys will say that because they like watching girls makeout. Separate the girls, i'd still be attracted to them, fully clothed.
If I could go back 20 yrs and choose to be born a girl, I would. I believe in reincarnation in a way. I don't know if we die, and our soul inhabits another organism, or if we die, and we become a higher being, maybe some kind of being of energy. Either of those sounds pretty good, and sometimes I'm tempted to set myself free. I doubt I ever will.
And I know that the same thing happens to other people. All I want is a second chance at life, born differently.