My mum really hates me and we had a little argument and now she hasn't spoken to me in ages. When she does talk to me, she says horrible things in a sly voice. I didn't even do anything wrong, I was just a little bit selfish that's all. And now that she's angry with me, my older sister is sucking up to her, and is ignoring me to just so her mommy will love her. She's making my life hell. I want to kill myself, because its all my fault. I don't hate her, I hate me. What should I do??