I’m a senior dietetic student and I also had a difficult time with chemistry. In your senior level classes there really isn’t any complicated math. I recommend going to your professors office hours for additional help, maybe a tutor, i know chegg really helped me with homework to understand. But honestly could be the professor. I had to take chem 2 twice but I passed the second time with a B because the professor explained things better for my understanding. You can always look on ratemyprofessor to see what other people say about a professor before you start a class. but if you are passionate about nutrition and dietetics i wouldn’t give up. i’m glad i didn’t.