A pharmaceutical company might be a good choice if you really want to change jobs, but it depends where you live; if you can add organization to your skills you might make a good clinical trials monitor -- but it's gruelling and lots of travel! (they do make lots of money)
Some other thoughts:
A 2-year community college program is comparatively inexpensive as RN programs go (although most nursing programs
are day jobs).
While I went to school, my employer was understanding enough to make my hours flexible so that I could get the degree.
I also had a parttime job doing early am care for a quad lawyer.
Plus I financed part of my school as a "normal control" for gastro studies (involved NG tubes; since it was rather yucky it paid well).
Many hospitals offer scholarships if you agree to work there.
If you want to do it badly enough, there is always a way!