Is It Normal To Be Scared Of My Parents?

Last night my siblings forgot to put away the food since my dad had a late night meeting and my mom had to drive me to an out of school activity. When we got home my mom saw the food lying out and started screaming at my siblings. I was downstairs washing the dishes and I had a panic attack because I was sure that I was going to be screamed at next. I can also remember all the times she screamed at my brother and didn’t stop even after he had an anxiety attack. She also threatened to send me to a mental hospital back in May. Once she Grounded me for a month for forgetting to practice piano. She has gone through my room and thrown stuff out and then kept me and my siblings up ‘til 3:00 A.M cleaning. She once dragged me downstairs at 11:00 P.M when I was around 9 to clean the stove. She and my sister keep on having arguments downstairs that often end in my sister running up to her room sobbing. And once she did threaten to run my dad’s foot over with her truck when I was 4. I also once accidentally knocked over one of her violets and she started screaming at me about breaking a pot. To me it seemed like she was more worried about the violet than me. My sister has already stated that she is planning on getting as far away from the house as she can, and I am now forbidden to sit on my bed for even a second unless I am going to bed. Every time I hear my parents come home I think, shit, we’re about to get yelled at. And I once got spanked for stepping on a curtain when I was three. And she also pretty much tried to guilt trip me and my siblings into helping around the house, but the thing is, whenever we ask mom what we can do to help she just screams at us. It’s gotten to the point where me and my siblings are too scared to go downstairs out of fear of getting yelled at. She won’t stop yelling until someone forced her to stop, even if we are hyperventilating and sobbing. She also gets mad at me and my brother for not paying attention, and she knows that it’s hard for us to do that, as both of us have autism and ADHD. And she’ll make something up to justify punishing us sometimes. Once she lied that I had said that I dad finished my math homework, when I had said that I was going to go do it, and I know she understood that, and I got grounded. For doing homework. She threatens to take away our doors when we don’t come down because we are doing homework or something. I listen to music to relax so I was listening to music, and she just comes up and bangs on the door and yells at me in her words to “Get my ass downstairs otherwise she will remove my door” and she has threatened to do this to my siblings as well. And yes I am a minor. So, does anyone know if this is normal?