Dear gender

Ok this is really hard to say but I have to get it off my chest. I am confused. So confused. Sometimes I feel like I like girls and I am better as a boy. Sometimes I feel like I likes boys and I am better off a girl. I still want dick (I am 13) and I don’t really like gay sex. But I don’t know if I am fluid or anything and I can’t just tell my family or anything cause it’s too embarrassing and I don’t wanna be treated differently. So help?