Obligatory "Only you can decide who you are and who you want to be."
The trans community is usually very cautious not to tell other people who and what they are, because that's the negative experience that most of us made: Other people told us who we are and/or who were supposed to be (assigned gender and all that) and it went badly for most of us.
For me personally, I also lacked the language to express my gender feelings when I was young. I was a precocious, sensitive kid that had more female friends than boys usually had. Yet I did not reflect on my gender very much.
Only during puberty did I realize that something was off. I realized that I did not want to grow up to be a man and desired more than anything to be female. Yet I also lacked the language to express myself. I grew up in a small city with no visible queer scene, so I did not really know how to express myself and ultimately surrendered to grow up as everyone expected me to.
But it never felt right. "Maleness" was like clothes that did not fit me, no matter how hard I tried. I often felt like a "fake man" and that I had to perform maleness as much as possible, because people expected it from me and I was not good enough at it.
Meanwhile my desire to be female also never went away. Looking back I now understand that this was gender envy, but in the moment I experienced it as a constant yearning that pulled on me and while it got weaker from time to time, it never fully went away.
My only outlet were games and virtual spaces wherein I usually played female characters. The easiest way for me to lose interest in a game was if it forced me to play as a man.
My egg finally cracked when I realized that my gender envy encompassed trans women too: Why could they have a transition while I did not? Why could they take estrogen while I could not? Why could they wear female clothes, etc. These kind of thoughts ultimately led me to realize that I am trans myself, because I wanted to change my gender so much and I was the only one who could make that happen.
Ultimately my transition was not only an embrace of my own femaleness, but also a rejection of maleness.
I'd like to change my gender now.