At 37 I also decided I wanted to become a nurse. I'd already had an undergrad degree and two masters, but no science classes. I reviewed all of the different ways to get into nursing and decided on a part-time accelarted BSN program. I have found that pre-requisites vary amongst the schools
that have accelerated programs. My school (I'm in NJ) required Stats (my business stats was not acceptable so I had to take another stats class), A&P I and II, Chemistry, and Microbiology. I took the stats class on line and the rest at a community college. I also took a Bioethics class on line. This class was req'd before entering the full-time accelerated program, but part-time students could take it within the program. I was already on a roll, so I took it online through North Seattle Community College. Awesome course!! Very, very time consuming, but awesome. The prof was suberp (Dr. Tom Kerns...he's written some great books).
Anyway, there is no easy way. Believe me. I just started my program this August (I'm now 40). It took me a year and a half to get the pre-reqs, but it was totally worth it. If this is what you think your really want, I think going the accelerated route is the best way. If you can find a part-time or go at your own pace accelerated program, that's even better. By this time 2 years from now, I should be licensed.
I will tell you though, it's definitely a HUGE HUGE HUGE commitment. I have two little boys and I work 9 to 3 then go to school 4 nights a week from 5 until 11 (most nights). It's not an easy road, so just commit and do it.
All the best!