Thanks you guys I read all your comments and I appreciate them so much. I really lost focus on myself these past two months(which have been really rough in particular) and my grades really suffered from it. I have to take a class over. But I blame myself for that.
I'm back home from school as of yesterday. And today my sister said, "Do you want to hang out sometime?" I don't think she's initiated anything like that in years. I was instantly happy, and then doubtful. The last time I "hung out" with her it ended up with me crying and her saying everything was fine, which it wasn't. I don't know how to act around her. I can only ask the normal questions and talk about boys and school for so long. I don't know if I should avoid any drug talk completely and pretend like everything is normal or confront her. because it my experience confrontation has not ended well.