I need some serious help with my self-identification!?

I am a 13 year old girl and I am a . I like to be myself which is a femme-butch (I AM more on the femme side in how I dress but I am a total butch in how I act and feel. I pretty much just need to change my appearance) but my peers and parents are not for it at all! I don't want to buy a binder yet but I am definitely going to look into it in the next 6 months to a year. I want to wear guy's clothing; baggy shorts and jeans, guys shirts and shoes. Stuff like that. But I also want to have that occasional time where I can let my hair down and put on a tank top and a cute skirt or some shorts. I want to be able to do both but it is not allowed by my parents. They want me to be a girl but if i want to be or even act like a guy that is the only I am allowed to act like. They pretty much don't want to have there daughter there for only 1 day out of the month or something like that. To them it is either son or daughter all the time. I think you get the point now. My actual question is what do I do in this predicament? Should I be one or the other to make my parents happy or should I not care about what they say and just be who I am? I want all of your thought every comment is welcome. Thanks in advance! :)