Yes, you can keep trying your best. That's it. You don't have to have the best grades to go to nursing school, you just need the right attitude. They will train you to do the job. If your that concerned, then when you get to choose whether to finish with a normal high school degree, or take on a trade, you could consider going to Bocies. They train people to be nurses aids and that can funnel you into a basic nursing program. Not every nurse is the sharpest person in the room, but they make up for it with caring and determination. There are also programs at community colleges which will prep you for the program. There are many ways to achieve what you want. You just have to keep following the dream. If everything else fails, there is always private colleges for nursing. That is where the rubber meets the road. In a system based on just paying the bill, they will train you to do the job and probably give you a part time job at a local hospital which will help you to learn. Just go for it.