Am I a terrible daughter?

My mom and I have a rough history. She’s one of the moms that believed she was always right and could do no harm. She constantly talks about how hard working she was as a child, and always puts me down because I’m not as far in life as she was at my age, I’m 20.

She also extremely attached to me, almost at the hip. I have a tracker on my phone, I’m not allowed to stay weekends at college, and she forced me to only take classes from Monday-Thursday. If I start a relationship she needs to know EVERYTHING about the person, whether it’s a friend or boyfriend. I’m never allowed alone time, nor can I hang out with friends.

On the 19th my mom had a heart attack, one only 30% of people survive, and I honestly don’t care. I’ve always been her rock, I’ve always taken care of her. But when I came home and saw her I honestly didn’t care, because she still berated me, and even said she was horrified that I didn’t drop everything and ditch my classes to go see her the rest of the week. She’s also upset because I’m going home tomorrow morning because I have lab homework and the only time I have is from 12-2 tomorrow.

I hate how I feel about the situation but... am I a bad daughter?