Dang, I wrote a nice reply and I backed up before I posted... Let's see how this one comes out lol.
I kinda think any name you choose is gonna start off a bit weird because all you're life you've been called one name and have grown used to it. I think it will prolly take some getting used to being called a new name as well.
Are there any names you've heard growing up that you really like? Have you tried looking up baby names on the web or in a book, maybe you could find an awesome name that way. You could also ask your parents what your name might've been if you were born a female. I would avoid using a friend's, family member's or even just an acquaintance's name.
I ended up settling on Kelly, at least for now, because I like that name, it's close to my birth name, and it fits in with the theme my parents sort of had in naming us (my brother, my mom and I all had names starting with "K"). I'm not out or anything yet, so nobody calls me it, as I'm still very new to all of this, so idk if I'm gonna end up keeping it or not yet. It took me awhile to pick out that name, so I know deciding on a name is difficult. I hope this helps a bit, I wish you the best, hope you find a name that you love!
-Kelly