You're 19 years old, an ADULT, with a job and you have a 10pm curfew? And your family says your GF is controlling? GTFO here. (Them, not you.)

Everything your family says that your GF is doing that's bad...is what they're doing to you. They're pissed at her and say they hate her because they see her as a threat. A threat to their control over you.

They're projecting, big time. This is just the beginning of their assault on her and on your relationship.

You've said you want to spend the rest of your life with her. You already know what their reaction to that will be, once they finally understand you really mean it. They're going to step up their bullshit, way, waaaayyyy up.

Get ready to start running interference for her, they should cease communicating with her entirely. Have her block them and no more responses from her. Do not tell her any of the nasty things they say about her and her family. You know it's just made up bullshit they're saying to beat you down and keep you under their thumb.

Start saving whatever money you can in a bank account your family has NO access to, because if you want to stay with your GF, you have to be prepared for them to go nuclear and kick you out at some point. That's the most power they'll ever have over you, when you are living under their roof. Get ready to move out on your own because your family's bullshit will never stop until you can get away from them.