The priority right now is to completely withdraw from RMU, set up a payment plan with them for the $13,000, contact your loan servicer and choose the repayment plan with the lowest monthly payment (income based or similar) for your student loans, and get a fulltime job. Is there a Walmart nearby? Or Aldi pays pretty well.
You do not want to let the debt at RMU go. They might send it to collections, and that will negatively affect your credit rating and you will owe more money.
You cannot attend college right now, until you pay this off, and then apply to a school where your federal and state aid covers your costs and doesn’t require more than the student loan.
Maybe you can live with your parents or boyfriends’ parents for a year to get this balance paid off.
Then figure out your next step with affordability in mind.