I think I accidentally ruined my mother's life.

My mother is always complaining about me or yelling at me because she doesn't like the way I look, behave, and act. I used to think she was just being mean but when I think about it, she might be right. I'm 24, haven't graduated uni yet, and can't work a job that she finds suitable next to my classes before sometimes I finish late and I can't fit a job open from 8-5 in. I spend too much time studying for my exams instead of cleaning the house and helping her sort through the things she's hoarded since the 90s. And I also can't wake up before 8, 9 and that really upsets her because she's usually up by 6 sometimes 5. I haven't managed to befriend even in high-school the kids with rich parents and good families to learn from them. Truth be told, they never really shower an interest in being my friend, and my mother prefers successful families over our own, so she's still upset about my friends not being the good ones. I'm not very good at cleaning, in fact, when I clean, it just angers her more. Her health is getting worse, too, because of all the stress. I cause her to wake up in the night in cold sweat because I didn't pick a good uni major like business or law, instead I'm studying language and she doesn't like that I'd be an interpretor with that. I'm not sure how to proceed or how to befriend better people because I come from a complicated family and I'm not very smart or successful myself, nor rich. So I don't think they'd want to be my friend but it is my mother's biggest regret that I don't have good company. I don't know what to do or how to fix this.