I've had this happen with my dad. He kept telling me that what my mom did (emotional abuse) was not bad and wasn't what I thought it was. That her behaviors were excused by her problems and that I just needed to forgiver her and forget about what happened. It is really hard when the people who are supposed to protect us and support us are not there for us. I'm glad you reported it to the police. I'm sorry that your mom is not supporting you. That teacher should have reported what you said, no matter what your mother told her.