Why don't you start by finding out what kind of liberal arts credits you would need, such as English, Math, Psychology. If you can't afford the time or money, just take one course a semester. Alot of tech and 4-year schools have online courses for these. Does your employer have tuition reimbursement? I say take the liberal arts first because most schools only give credit for the sciences if they have been taken within 5 years of starting the nursing program.