I'd look closer at the prereqs- it may take longer. You need biology before microbiology, you may need algebra before chemistry....
Those three years go by pretty quickly. I try to tell everyone mulling school over- it is never a waste to go to school. As much as you may say, "this doesn't apply to me," all those prereqs make us smarter and more informed.
Nursing school by itself is hard enough. Adding prereqs into that is, in my opinion, a way to sabatoge your success. How can one go through nursing school, doing anatomy and physiology, biology, chemistry, algebra, etc., and master all of them AND do well on the nursing classes to be able to defeat the NCLEX (the biggest hurdle to your RN)?
I am speaking as someone who had previously sworn off school. If you have the right attitude, you can actually enjoy those prereq classes. Personally, it opened up my mind, and I am glad I took them regardless if I were to go into nursing or not. Turns out, I actually love school.
Set yourself up for success.