Should I keep retail job while finishing off pre-reqs for nursing or

I am new to this thread, so please bare with me! thanksI am 24 and finished my bachelors in health education few months ago. I never planned a career in this field, but chose it as a back up and graduated with honors. My goal was to become a nurse since I was 16, but I struggled academically for years in college (long story). Anyway, I want to give myself a second chance and pursue my goal. I currently work in retail to pay off my tuition fees for nursing pre-reqs and I plan on applying to nursing second bachelor's next year. I also volunteer at a hospital. I am not sure if I should quit the retail job, and postpone the pre-req classes and work full time within my field and save up instead? If I do work within my field, I probably won't have time to volunteer!