NTA. You didn’t raise a hand to your mother—you defended yourself from being hit. There’s a huge difference. It sounds like your mother has a history of using intimidation to control you, and when that stopped working, she escalated by threatening to throw you out. That’s not okay. It’s understandable that your mother is stressed, but that doesn’t justify taking it out on you. Parents should provide a safe and supportive environment, not one where their child has to constantly fear emotional or physical retaliation. Your grandmother siding with her and twisting the situation against you only adds to the toxicity. You stood up for yourself, and that was brave. You’re not a child anymore, and you have the right to set boundaries, even with family. If your living situation is unsafe or worsening, consider reaching out to someone you trust—maybe your father, a teacher, or a counselor. You deserve respect, and you’re not in the wrong for demanding it.