Help am i a girl or am i nb

Well, don't feel too rushed when it comes to coming out. Take your time! If you aren't ready, then don't do it.
As for gender, liking skirts and yuri doesn't mean you can't be non binary. It depends on how you feel about your body, and how you want to be viewed. Don't worry too much. Things will become clear in time. Feel free to message me if you need anything. (*hug*)

 

First of all, why do you think your nonbinary? Do you have gender dysphoria? Want your sex to be different? Socially, is it just pronouns or do you really not want to be seen as a girl? If it's just pronouns you're probably a girl, but if it's being seen as a girl as a whole then you should probably think about why you don't want to be seen as a girl so you can decide if it's sexism/some other issue or if you're actually nonbinary.

 

A person's presentation doesn't dictate their gender, and there's a whole lot more to a gender identity than just the way you dress. And who the fuck decided skirts and long hair and certain behaviours were feminine anyway? My point being, if skirts and being 'girly' reflect your non-binary identity, then that's cool. I wear skirts sometimes too. It doesn't stop you being non-binary.

 

You sound nonbinary to me. You can be nonbinary and still not mind some aspects of your assigned gender's social role. You've got dysphoria and don't want to be read as female, and that sounds pretty non-cis to me. You can still like dresses (there is nothing inherently female about dresses; it's just how our society insists on arbitrarily assigning genders to the cloth we put on our bodies) and enjoy the role of the "girl of the group" without being a girl.