I Need Some Serious Help

Please help me. I'm a cis omnisexual girl (yes, I made the shoes post). Or so I thought.

So, for the past month, I've been questioning my gender identity. I know for sure I'm not a boy, and I love my girly parts (boobs, vagina, etc..) but I LOOVE when people use they/them pronouns on me. Whenever I run into those "trying on new pronouns" things I always feel so comfortable with she/they.

I also don't like super feminine things. I thought I did when I thought I was hetero, but I realized that I don't like those things on me, I like them on other girls because I found them attractive.

Wearing super feminine clothing has always been so icky to me. But my parents don't let me buy anything else because they're trans/homophobic and say, "You're not a boy, so dress like a girl."

And I see enbies online and always wish I were them. My girlfriend is a demigirl, so if I'm not cis, I feel like that's what I would be.

But the problem is I DO NOT look like one. I'm very feminine (you can blame my parents) and it would just be hard to explain to classmates and stuff. People at school always make fun of pronouns saying things like, "Erm actually I go by chair/them!!" And laughing about it. So I'm not comfortable being fully out if I am a demigirl - because I am afraid to be mocked. My girlfriend is mocked like this every day when they try to tell someone that they also go by them.

My friends are also a little undereducated about the LGBTQ+ community (having grown up in super religious households) yet they try to support me despite feeling weird about it, and not really understanding.

So, what should I do? And am I a demigirl despite not passing as one? And if I am what are my next steps?