How can I help her?

Ok so my girlfriend and I have been dating for about a year and counting she’s 14 I’m 16 we’re in a long distance relationship and and we’ve been keeping it a secret from her parents and well her parents treat her like crap seriously one of the harshest things you can think of she’s most likely been through it,her parents seem to want to kill her at times her mom almost actually did it one time by choking her and like I really want to go to Texas to pick her up and bring her with me back to Cali but she doesn’t want to leave her parents because she doesn’t want them to have a bad reputation and have people talking about them like “oh her daughter left with some guy because they are horrible parents” I mean can you beleive that my girlfriend is a sweet heart,the sweetest girls you’ve ever met she doesn’t even give her parents a reason to get mad with her and out of nowhere they always end up giving her crap like everyday and she cries herself to sleep sometimes and I try to help her through it like I try to be her emotional support and to show her that someone does love her and even though her parents don’t I do and well I feel so useless it’s like I want to go to texas tell her parents off and make them suffer for what they’re doing to her,she goes through the cruelest things and I wish I could do more to help her there are so many things stopping me from going to texas like school,summer school,and I have no money to travel except $100 that I’ve saved up and I don’t know what to do is there anything I can do to make her feel safer and better and so I won’t feel so totally useless?Please help I really need some advice on this.