There will always be employment opportunities for good nurses. Chemistry, Biology, or Physics courses are all very important. While I don't have a specific program to suggest, I would recommend that a person enter nursing school immediately following high school. It is also a very good idea to volunteer at a hospital in high school during the school year or over summers. Good speech and hearing aids are important.
Problem solving skills and a good work ethic are also imperative.
It is important to be pleasant and not complain. A support system where you can vent your feelings and complaints to good friends and family outside of your field is also very necessary. Contacting a local college or university level-nursing program would be the best option. Because nursing requirements and certification vary so widely from state to state, college programs in your area are the best resources for information regarding nursing in your state. I would suggest asking the college nursing program in your area for suggestions.