I'm having trouble with my soon to be step daughter. She's 14 and almost a sophomore in high school. Granted she's been going through a lot recently I've been letting everything roll off my shoulders. But yesterday was not good. She is telling her mother about my business and that I have changed her dad. While when she's face to face with me she's fine and doesn't have a problem with me.She has also lied to her Dad and I NEUMEROUS times and has stolen my clothes as well as ordered movies without asking. This girl thinks she should get everything handed to her! I'm so furious I could punch a wall right now. And on top of that I'm almost 11 weeks pregnant. It's so hard to see her treat her dad and I with such disrespect. I seriously don't know what to do I'm at a loss for words. Any advice???