I can sort of relate to what you're describing.
For as long as I can remember I've been resentful of the fact that I was born female but I never thought I could do anything about it so after a while I just accepted it. I can't say I ever accepted having female gender roles placed upon me but I did kind of just resign myself to having a female body for the rest of my life. I guess I became somewhat comfortable with my female body, I started fussing over my makeup and hair and I even went through a very short lived phase where I tried dressing a little more femininely. When I did feel dysphoria (I didn't know that's what it was at the time) I just put it out of my mind and tried to ignore it, thinking there was nothing I could do to alleviate it, so in a way my mind had been masking my discomfort too.
It wasn't until later that I finally admitted to myself how uncomfortable I really was and all of the discomfort I had tried to push away was still there festering and just getting worse. Eventually the dysphoria was too much to stand, I couldn't push it away anymore, so I went looking for answers and found the trans community. That's also when I learned that it was possible to transition. It felt like a whole new world had been opened up for me because if I transitioned, I wouldn't have to hide and repress myself anymore. Finally I could not only admit to myself that I was a man, I could actually become one too.
When I think about it at length, I am afraid to transition and leave behind the body and everything else I've known for so long but it's even more frightening to realize that I almost lost myself completely by repressing myself and my dysphoria for so long. I don't want to lose myself and have to go through the rest of my life feeling hollow and pretending to be someone I'm not like I used to.