I wish I had different parents

This is more of like a long vent but I can't handle it anymore. I've been filled with so much rage the past few days and I want to let it out.

I (18F) live with my parents and my younger sister. My parents don't understand me in the slightest. Let alone I don't even think they like me. They don't see my pov in anything. They just want to disagree with me. My mom keeps saying that I must not share what's happening inside our home to my friends, online or even in therapy. My parents have told me to not tell people I'm autistic (diagnosed) cause it's a shame. They've told me to not share the fact I'm bisexual because it's not normal.

I dress and look slightly alternative. I have dyed hair, a few piercings, I mostly wear black. They judge my decisions on my appearance. If I put effort into my makeup or my outfits they keep saying I'm one of those 'freaks' or whatever that means. The first time I dyed my hair I got grounded for a month. I was 15. I wanted to experiment. I got robbed of so many experiences because of their closed minded way of thinking.

They've never allowed sleepovers. I've only slept over at friends houses twice and I basically had to beg them for a month those two times. The only reason they let me is because it was my friends birthdays. Currently I've been seeing a guy (19M) and I've been wanting to sleep over at his place and they won't let me. He still lives with his parents. I told my parents I'd like to sleepover at his place and since I'm finally 18. However, they still won't allow it. My mom especially says it gives a bad look on me cause it's basically making it known to everyone that I want to have sex with him. Me and him were friends beforehand. We just want to sleepover. It's not that deep. And even if we were having sex, why does that matter? I'm literally an adult. I'm afraid to just go do it anyway cause they can do some pretty annoying, unnecessary shit and I don't want to deal with that. But then again I have to do something atp.

I'm really tired. I don't want to live here anymore. I can't get a job atm and even if I could, rent in my city is expensive as hell. My parents won't even help me pay it, with or without a job, cause we already have a place to stay and spending money on a separate apartment for me is 'not necessary'.

I feel like moving out is not enough. Once I'm financially stable enough I plan on cutting them off. I've reached my limit a long time ago. They don't offer emotional support. We have no connection apart from the fact we have the same blood and that we live together.

Sorry for the long post. I'm just ranting. I want to let it out. I need input. I feel so alone in this. Sometimes I wish I had parents that were actually supportive. Parents that I could talk about how they were hurting me and actually take accountability instead of dismissing me or blaming me. There's sm more but I'm getting ahead of myself here so that's all for now. Thank you for reading in case you did.