I agree with dt70, go and get some additional information about the statistics of those applied and accepted. You might be surprised about your odds of getting in. I don't know if it'll make you feel any better, but I certainly don't have straight A's. I was kind of an idiot in my earlier college years and I know I could have done better with some of my classes that I'm now using as pre-reqs (I would take them over, but there's a few unrelated things preventing me from doing so), but since I started up again last Fall, I've gotten my act together and am pulling A's now but again, those earlier classes are probably going to stay as they are. I've not taken the TEAS V yet, but as I understand, a lot of schools require something like at least an 80%? I'm sure you could pull that off.
I've heard on this forum that some people were able to get into their programs with non-straight A's and barely above the TEAS V requirement, so it's possible. That's what I keep thinking of (granted, having straight A's and a good TEAS V would be ideal, but you get the point).
If, however, you find that you're simply out of resources to go for nursing, there are other things like certain health professions, like physical therapy, radiology techs, etc. that you could always look into.