I worked in Accounting for 10+ years and just quit my job in August to go back to school full time.
I actually found an accounting job at JP Morgan Chase and work 2 ten hour shifts on the weekend. I'm only part time but at 20 hours a week I will be eligible for full benefits next month.
They also have many full time positions with 2nd and 3rd shift hours, as well as full time Friday-Monday or Thursday-Sunday type schedules that may be able to fit around your day time school schedule.
I will be taking my last 2 nursing pre-requisites in the spring & applying to nursing school! By working in Accounting in the meantime, it helps to remind me why I want to change careers. LOL But I do like my job and it's been perfect for me with my school schedule right now.
Most people don't think of banks being open on the weekends, but Chase (and possible other banks.... check around) has departments that run literally 24/7, 365 days a year. I work in their Retail Lockbox department.... we process payments (basically A/R) for many, many businesses ~ large and small, hospitals, doctors offices, etc. My focus was Accounts Payable for so many years so it's nice to have a change. They also had various positions in the loan department, financing, etc.
I just re-read your post & see that you can renew your CNA license so that's a good option too.
Another option would be to find a job at the hospital ~ while their accounting jobs most likely will be during the day, however they have a lot of administrative/clerical/assistant type jobs with evening, night and weekend hours.
You may find yourself getting a job on a bit lower scale than you are used to (like me.... I have my Bachelors in Business Administration & make about 1/2 of what I was before I started back in school), but I just keep reminding myself that I'm making a short term sacrafice for my long term goal of nursing! It will all be worth it in the end.
You could also check into grants, loans, or scholarships to help you stretch financially throughout these next few years. Good luck!