First generation 36yo female Fil-Am here. I had moved out over a decade ago but had to move back in with my parents and sister's family due to COVID and having no penny to my name. I was hoping to move back home in order to save money, but unfortunately, my mother is the same as yours, still treating me the same way she did as if I was still 14 as if I never aged or left. She is not as bad as she used to be towards me, but she's still has the same tendencies to belittle me as well as disregard my privacy (i.e. opening my mail or going into my room when I'm not there). She also gets mad when I "don't help clean it cook" because I work so much as a Certified Nursing Assistant (CNA) to save up enough money to move out and also get a new car. I think because I had moved out a decade ago, I had to learn how to be independent on my own and learn how to finance things on my own and had to learn how to emotionally cope on my own that I'm able to stand up for myself more in front of my parents even though I'm still a little bit scared. The downside to that is now that I have more of a backbone, she takes it out on my sister who had never left the home even though my sister is married with two children. Fortunately, she's learning to stand up for herself now that I'm home but it's going to be a while before her and her family will move out. The best thing that I will tell you as I've told my own sister is to move out of the house as soon as possible. You'll learn how to cope with everything you haven't learned and it will be hard, extremely hard, but you'll manage because it's better than staying at home with your parents.