I say forget about her. She sounds like bad news. If she values more what her friends are saying then I suspect this will also dictate her actions in a relationship with you. So even if something happens between the two of you, I am certain she will continue to trust her friends more then you. And you will forever be trying to prove to her that your care for her.
Don't let this stop you from moving out and doing the things you want to do. If you can financially do it and you know what you want to do then go for it.