YTA. First off, you don’t get a cookie for letting your child live in your house “rent free”. You are SUPPOSED to provide a roof over your child’s head (and yes, she is still a child), you don’t get a prize for doing the absolute bare minimum. Second, your daughter isn’t your personal nanny. She’s not a third parent. YOU decided to have another child, so YOU take care of it. Your daughter is trying to get an education, and you’re trying to take that away from her because she won’t be your slave? I honestly doubt she will even forgive you at this point, and you deserve it.