Hey!! Okay so I know this feeling SO well!!
I was 26 when I first started questioning my gender (after years and years and years of clues I seem to have missed)
I started wearing girls underwear in private and experimenting with makeup and extentions etc. It still took me another 2 years to come out full time and start transition and I was stuck with the belief that even if I did transition I would NEVER pass.
Now I'm stealth and have been for over a year. I just turned 29 and feel more positive about myself than I ever have.
Its hard to beat yourself up over the "missed years" but trust me 26 isn't too late to state, as some of the other women here have said they started 20 years later than you have.
It'll all come right in the end. Promise.
If you ever want to message, feel free

xxx