Hi @
zsofi I think your generation realizes that a lot of people can be gender fluid, something that was not really talked about in my generation. When I was your age, there were just two choices, male or female (or the binary). I never really felt female (although my body is female). But I also knew I definitely wasn't male. I have a cousin about your age who identifies as non-binary and uses they/them pronouns. That's something I think describes me as well. I will still respond to she/her pronouns though, because I look so feminine.
I think gender identity is usually figured out long before sexual orientation. But at 13, I don't think you really know who you will end up being sexually attracted to. At that age, I wasn't really interested in anyone.