I am 15 and she is 12 she always blames me for stuff she says im the reason she wants to kill herself, she always picks on me but when i pick on her i get in trouble, i have to share a room with her and i hate it so much because if i even leave one thing on the floor she will rip it up, like one time I left my homework on the ground because I needed to get a new pen and she destoryed it and it was due the next day and she said it was an accident to my mum and then laughed at me later on when my mum wasnt there. I also hate to sleep on the couch because she yells at the top of her lungs that im making to much noise. This makes me sound like such a loser, but bond with her. My sister and I used to argue and now we are closer than ever. Take the time to really bond with your sister while you're still together. When you leave for college you won't see each other a lot and your childhood will be gone and all you will have memories of is fighting with her. Talk to each other and learn to get along.