[header] How to become a school psychologist [title] Think ahead while in high school. [step] As a high school student, you can best prepare for your future degree in psychology by shaping a vision for your future. As a high school student, research colleges with strong psychology programs. 
Check the statistics for freshman admissions, and try to achieve an above-average gpa and high enough sat scores to become a desirable candidate. Learn as much as your school offers about science and writing, and take a full four years of math.