Crying... Help Me</3?

Jenn, my heart goes out to you! It's hard to grow up with siblings sometimes. Aside from what I told you in my other answer, I have a couple (hopefully helpful) ideas. Have you talked to your parents about the way she acts? I know that you can't control her or her actions, but you CAN control the way you react to it. Is it possible that she does some of the things she does JUST to get a reaction out of you? Honestly she sounds like she's just horrible to you! There is a great possibility that things will change when you both get out of the house and on your own. I would hope for that. If she doesn't change.... well, all you can do is work on yourself, and pray for her. She will only change if she wants to. I wish I could help, but this is the best I can do. Good luck to you.