You might have a typo in your last line, SI3.
I feel that my professional life has improved immeasurably since I transitioned. I have much more confidence in myself and my presentation. Of course, when my relationship went south, I also had to put myself out there and look for more work than I had been getting, and I needed to take on more service and professional development activities. So, in the long run, the breakup actually helped me. But so did the actual shift from living as a woman to living as a man.
Socially, I'm much better off, but my romantic life is nonexistent right now because I don't want to be with anyone. I do have hangups about having the wrong bottom parts. But I was having a lot of issues with sex anyway. Still, I do worry that I'll never be in another relationship, but I also have some disadvantages that a lot of trans men don't face. Like many others, I haven't had bottom surgery, but in my world, it seems to matter more. I'm into men (I'm gay), and penises are very important in that world. Also, I'm middle-aged. I think that younger FTMs have a much greater advantage; their generation seems to be much more accepting of trans bodies.
I went through quite a lot of worrying early on, but I've settled down a great deal now. Yes, I do have hangups, but I am loved and accepted by my friends who know about me and some who don't. I fit in better. I'm happier at work.
It took me a couple of years to work through the worst of my fears, but I tend to be a late bloomer and a slowpoke.