I'm majoring in nursing, there are some science courses I need to complete before I apply for the program. I have to take microbiology, physiology, medical chemistry, and human autonomy with laboratories. I didn't excel in science or math in high school, I went to an art high school.

Without the science courses it will be almost impossible for you to major in nursing, particularly if it is a BSN program.

So you are not as good at it ? What career do you want. Stop thinking of the negative, and thing long term what you want to do.

So you get tutors to help in science, you start taking the classes, one a semester, you start study, and listening in class.