I agree with the previous nurse's recommendation for the accelerated BSN Program. There are several out there, and your upper/lower division general studies/science classes should transfer over to your new program without difficulty.
My background was in the Accounting/Business Management field before going back to nursing school
at the ripe old age of 27, roflmao.
I am now 35, been a nurse for almost 6 yrs now and love what I do. I could not see myself doing anything different. Also, my grandmother went back to RN school when she was 50 and there were many people in my LPN and RN transition classes who were over 40 and did well.
Go for it!! The work to get there will be tough, but definitely worth it. Email me if I can be of assistance or if you just need words of encouragement.