Semira, unfortunately I know exactly what you mean. I had developed a strong male persona, and buried myself deep behind it to make sure nobody could see what I really was, something that society and religion denied could exist, was evil, and wrong. I didn't dare express myself. Every motion I made, every word I spoke was carefully inspected to make sure if wouldn't give away who was hiding inside. I felt very empty, almost dead inside.
Others saw this as my being emotionally distant, aloof, and a real stick-in-the-mud, someone who's not much fun to be with or around. I was isolated, friendless, for all practical purposes a hermit in the middle of a crowd.
Eventually, after several decades, I no longer had the strength and ability to maintain this shield, and I fell apart, in a state of severe suicidal depression. That's when I called a hotline, and shortly thereafter started therapy for depression, anxiety, and gender dysphoria. I also came out to my wife at that time, although I was barely coherent.
It's possible to come back from this. I'm getting better. I'm dismantling the old male persona. I have good days, and bad days. The good days are coming more often now, and I smile, and talk to people. Actual social interaction, from me, not that male automaton. The bad days often have real causes behind them, lie medical stonewalling, or people refusing to accept me as I am. I'm rejoining the human race.