I see the question was posted a while ago. Have you decided on what career you want to pursue? To help you with your questions, I'll add that it's a personal choice that only you ultimately know the answer to, but I think it might be worth thinking seriously about what makes you want to become a doctor compared to a nurse or any other healthcare career. If the student loan debt really is the only reason you're unsure about your career decision, then keep in mind that there are scholarships and other financial supports out there that will help you pay off the debt after you graduate.
Ultimately though, it might be a good idea to see aside time to think about the pros and cons about the different healthcare professions you're interested in pursuing.
Hwal recommends the following next steps:
Education is a long-term investment. If you really want to be a doctor, apply to medical school and see if there are scholarships and grants that could help you. There are also ways to have student debt forgiven based on public service: https://studentaid.ed.gov/sa/repay-loans/forgiveness-cancellation/public-service