Question about a job?

Madison
I'm in high school right now, my senior year, and I have been out for about 3 months due to illness. I'm beginning to think I'm not going to graduate. I'm a very smart student, however, my school's policy and system is not that great at all. I want to be a nurse. Could I drop out if I don't pass, get my GED, and still go after my dream? I know having a high school diploma is important, but God I don't know if I can last another year there. It's so stressful, and I absolutely loathe the school. My junior year was also difficult because I want through the same thing but found out I needed to have my gallbladder removed, which I did last March. Help? Thanks.