If you want to go to a university (4 year college) right after high school, make sure that you are meeting the College Academic Distribution Requirements (CADRs).

Almost all applicants to university will need to have satisfied CADRs through coursework completed in high school (generally defined as grades 9-12 in the U.S.).

CADRs Requirements:

English - 4 credits (9th to 12th grade)
Mathematics - 3 credits (9th to 11th grade)
Social Sciences/Social Studies - 3 credits (9th to 11th grade)
World language - 2 credits (3 credits is encouraged)
Science - 3 credits
Senior year math (12th grade)
Fine, visual, performing arts - 0.5 credits
Academic electives - 0.5 credits

Make sure that you take all of these classes while you are in high school. Talk to your counselor to ensure that you are enrolled in these classes every year from 9th to 12th grade.