Hi, Shige, and welcome to Susan's!
I'm a bit of an old duck, 56 and I am M to F.
May I say that I see wisdom in learning who you truly are within, and enjoying whoever that might be? Regardless of what you see, feel, or decide, enjoy whatever the results are. Be bold and never walk with your eyes down. Look at each person and smile, nod, or just look 'em in the eye. Fear no one because of who you are. In the multitude of advisers there is safety and wisdom so feel free to ask your questions here or any other place where you believe you will find the reality of an issue.
Enjoy riding, drawing, and every other thing you do. Life can be wonderful if you so desire.
Bon chance!
Wing Walker