Is It normal for a parent to have rules this strict?

I am 18 years old but will be 19 in about a week and my mom is still really strict. Growing up she had many rules which I followed without any problems. I was never a problem child unlike my older sisters. I always had good grades and never disrespected her. I was never able to hang out with friends had to stay home and babysit my nieces and nephew after school and on the weekends. My mom did not allow me to date until I was 17 which is understandable. Since I am of age and in college I thought that I would be able to have more independence but nothing has changed. I still live in her house and I understand that I must follow her rules but I wondering if this is what other parents do. I have 9:00 curfew and I must ask for permission to go anywhere . I once went outside to my car and came back in the house only for her to get mad at me for not telling her I was going to my car. Im starting to feel as if I don't have a life because of her constant hovering and keeping me under her wing. I would like to talk to her about how I feel but I am not sure to talk to her since I feel like she will have a fit .