People work, but it's pretty difficult. What are you work schedules like? I wouldn't judge nursing school by the number of credit hours that are assigned to it. It's a lot more work outside of class as well. It's not impossible, but I didn't know anyone that works fulltime, only part time and they are stressed a lot.
You can take A&PII in the fall and still apply but you won't get credit for it on your profile score. However, you will get points for your previous degree.