Hug incoming, sweetie. I know how you feel because I'm going through most of that right now too. My problem is I'm probably more than twice your age, so making any progress towards transitioning is terrifying to me.
You're beautiful as you are. You're always the best version of yourself right now. Live in the moment, not angry at the past you who didn't know what you know now, not frustrated looking at the future you who doesn't resemble what you see in the mirror today.
This is one hell of a a journey. It takes one step at a time and years of dedication. Please be gentle with yourself. You're the only you there is, and it would be a great loss if we lost you.
Chin up, buttercup. I'm looking forward to seeing your progress in 10 years, ok?