Hindsight advice from me since you asked:
Take your Psych, Soc, Chemistry, A&P, Human Development, and Nutrition before you step foot into the Nursing Program. Yes, it will put off your goal for one more year, but what you retain and use will be more in-depth than learning this information in nursing lectures. I did Chemistry during the summer and A&P I and II concurrent with Nursing and it has been a memorization jungle and a huge distraction. The lectures didn't sync with the A&P units -- for instance, we were learning bones when pharmacology was hammered. Had I known what was expected, I would have gladly taken an extra year to get these courses out of the way. Then you can devote your time, energy and attention to nailing down the nursing courses: meds, clinical, skills lab, and theory.
Sure, other people have done it together but most will admit that it is alot on your plate. Doing well correlates strongly with financial aid I might also add. YMMV