You can talk to the college's financial aid officer, they can help you file without parental information. But that's a very complicated process, and you may not be eligible for things like Pell Grants.
It's very immature that she's doing this to you. I think going away to college will be a good thing for you, it doesn't sound like you get a lot of support at home.
It's very immature that she's doing this to you. I think going away to college will be a good thing for you, it doesn't sound like you get a lot of support at home.