I understand where you are coming from.
I am NOT an academically smart person at all. In high school, they said I had a "learning disability" and could not learn math... I barely even graduated with a 1.6 gpa. So when I realized that nursing was my dream I became very worried about the classes, especially the math. Here is the deal though, I pushed through my pre-reqs and got mostly all A's with only 2 B+'s in A&P 1&2. My conselor asked me how I went from a 1.6 in high school to a 3.75 in college and I just told her "this is my passion and I am just pushing myself to do well.
It has been over a year since my last pre-req and I just got accepted into the fall nursing program and I hardly remember any of the information I learned but I don't think it matters because the stuff I need is going to be drilled into my head for 18 months during school. I don't think anyone can pick up a trade on their first try, it takes time but after a while it will become second nature and the information will be ingrained in you.
So I would say, don't worry about the smarts side of nursing because it can only get you so far. Smarts is NO substitute for PASSION in the field. True story, my mother knew a guy who flew through nursing school with straight A's but he didn't last long in the field because he did not have the passion for patient care and, to me, thats what a truley succesful nurse boils down to... someone who has the passion for the field. Yes, you need to focus and pay attention and learn in school but no one is going to be able to teach you how to love a patient and deal with the stress of the job because you have a desire to help people.
So I would reccommend you ask yourself a different question: "do you have a passion for nursing?"
-are you willing to wipe peoples backsides and clean up blood and vomit
-are you willing to be underpayed for the level of work and stress you have to deal with
-are you willing to not be fully appreciated for what you do
-are you willing to not pay mind to the hardships of the job because you have a love for the field which at it's heart has and always will be HELPING PEOPLE GET WELL... modern medicine has lost site of that
These are the things you need to consider. I used to work in a nursing home working with dementia patients; I wiped ass, cleaned body fluids, got attacked by patients with dementia, got screamed at, hurt my back lifting patients and had to deal with outrageous politics and drama from my co-workers.... but i LOVED it. It was the greatest job I ever had and our head nurse said if I could do that job and like it then I would be a great nurse and thats what started the dream in me. I can't say I like cleaning feces (who would?) but when I went through all those things and then had that one patient that may have had a better day because I loved them like they were my mother or father and I did not make them feel inferior, that sustained me... thats why I am going into nursing
Why are you going into nursing? If you have the passion then don't worry about the smarts, just get dedicated to succedding and you will do fine.
p.s. if you are maintaining a B/A average in A&P then that says alot about your ability to learn the material... most people can't hack it in that class.