When I first started my transition, I cared a lot about the reasons I was trans. I had a whole thing about how my story lined up with other trans people, about what I wanted and for how long, etc. I felt like I had to prove it to myself, if no one else. I had to be sure. I had to be able to justify it to every person I came out to.
Now? I kinda don't give a shit. I am. Good enough. Anyone who says otherwise can fuck off.