From what you have posted it sounds like you are a girl, and will remain so, regardless of clothes or anything else.
The way I am feeling today I don't really feel qualified to advise anyone, but maybe you can get into the mindset that you are a really, really Butch girl, or find the local Genderqueer community. They don't care about the details, just how you act as a person.
I am trying to find people like that in my own age group locally.
Karen.