Same boat. I was increasingly exhausted from pushing myself and masking who I was for decades. I decided one day to just be myself, I couldn't take it anymore.

Lost almost everything: Job, life-long partner, house, etc. Those things simply weren't compatible with the new me. They tried to cram me back into the box of conformity, but I don't fit anymore. I think at some level I knew that, which is why it took me so long; I was clinging desperately to the life I had. Had to throw it all away and jump into the abyss.

Hard to call it a good decision, but I'm still here, and I'll do it better this time.

Edit: realised I forgot to answer your main question. After a long time of having nothing, I started discovering things about myself. Oh, I like this. I hate that. X feels more like me than Y. Illegal thought crimes for my entire life, that I'm allowed to think about now. After a while you figure out who you really are, not who you had to be.