That's normal. I had to work through my feelings for girls before I could even touch my gender identity, but it was much like that for me. I was asexual for much of my younger years (before age 18 basically), I only really enjoyed watching porn lol, when it came to actual people, or actual fantasies, I never had any. I successfully repressed all my sexual feeling, particularly my sexual feeling for women. But when I accepted that it was OK, and just let things be, all of a sudden it was "GIRLS GIRLS EVERYWHERE!"
It'll pass, so my advice for now is to enjoy what you have repressed in yourself for so long.