Never Forgiven Mom For Cheating On Dad & She's Been Horrible To Me Since & Calls Me Ungrateful. AITA

A little bit of context first: My mom cheated on my dad when I was 10-11 with one of his closest friends, and when my dad found out, then she left us to live with her brother. It was a really rough time for our family, and to be honest, at the time I was sure that I'll would never see my mom again. My brother and my dad forgave her pretty quickly, but I didn't. She and my dad ended up getting back together however. I just couldn't get out of my head how much of a horrible mother she have been to me. she would often tell me that I was a burden, and that I'll be with them all my life because no man would ever want me. I was so young when she told me that, and I'm still disgusted by it. She blamed me years later for my depression, and often yelled at me because of it. She would throw a fit every time I forgot to do something that she asked me, even though I was already doing everything in the house (cleaning, laundry, taking care of the dog... Everything except cooking) and after all of that, she would still call me disgusting and messy. There's SOOO much to add to the story, but I don't want it to be too long. Story 1: AITA for "bullying" my mother about her cheating ? Story 2: AITA for telling my parents they can figure it when they asked me to walk my sister home from her extra curriuculars? Story 3: AITA for not looking after a kid anymore? Story 4: AITA for taking my violin back from my sister after she broke my laptop and couldn't pay? She couldn't do her band concert #AITA #Parenting #Family