I first realized I was female, or, a girl when I was very young in many ways. One that comes to mind is how I was horrified by the term "handsome" being used by my adoptive parents with reference to how I looked. I didn't want to be "handsome," I wanted to be "pretty." Hair length was another issue. I couldn't stand to have my hair cut short. I cried and cried the few times my adoptive father won out over my adopted mothers whishes to let my hair be as long as I wanted it. My hairstyle was another issue. I'd style it like a girl vs. a boy with long hair ie: pony tails higher on the back of my head, parted down the middle or slightly to the side, braids, curls when I wanted them (I have straight black hair) Highlights -boy my adopted father hit the roof when I came home with those, lol, etc., and many many many other things like when people first met me and referred to me as "she." Being referred to as "she" always made me feel good inside until one of my adopted parents corrected them. I'd then run away and cry. However the most horrifying thing that I remember happened during my early teens when that first facial hair cropped up. Being Native American I didn't have as much as others of my age did but I was horrified by having any at all. These are only a few of many many many things I went through.
If I were given the opportunity to go back in time and have a conversation with my younger self, I'd tell myself you know your a girl so don't wait so long to begin making the outside match the inside to please others. Begin living as the young woman you are now. But alas, I wasted the best years of my life in misery only to keep my family happy. I'm glad I finally woke up and am now doing something about it.
What makes you a girl? You can't go by stereotypes. I still love my boat and love to go fishing. It gives me peace and time to myself but it doesn't make me any less of a woman, because I know with all that I am in my mind heart and soul I am a woman. I'm sure you do too it will just take you a little time to get over the fears your having. I have the wisdom of age behind me now, but at your age I was just as scared as you are. The only difference I can see is I knew I was a girl without any doubt whatsoever. My fear at that age was centered around how was I going to make my outside match my inside without dissappointing my family.