Consider starting with the college prep base curriculum: http://talk.collegeconfidential.com/high-school-life/2055289-faq-high-school-college-prep-base-curriculum.html
Your electives in psychology and statistics can be useful as a nursing major.
For additional electives in high school or college[1], consider:
- a common foreign language in your area, taken to reach a decent enough level of listening and speaking proficiency – can be helpful if you encounter patients with limited English ability but know that language
- physical education including strength training and general fitness and endurance – nurses may need strength to assist patients or move patients who cannot move themselves
[1] Nursing major programs may not have much space for free electives, but if foreign language is a general education requirement or can satisfy less-specific general education requirements, you may be able to fit in additional foreign language courses in college. Physical education in college is typically only a few hours per week, though you could obviously do more of the activity outside of that class time if you want.