Title.
I had just turned 16yo when I started college at USC, coming from an expensive private school in Palo Alto with 3.98UW GPA. I took Calculus BC in freshman year of HS and scored a 5.
Once in college - freshman year I majored in Neuroscience and aced Freshman Science Honors classes (FSH), as well as Thematic Option classes (was on the pre-med track like my two doctor parents). National Merit Finalist award bumped my automatic Dean’s scholarship to Presidential. Uninterested in the sciences, I changed my major to Economics and Mathematics sophomore year, picked up a minor in Business Finance, and got heavily involved on campus (Marshall Case Team, Los Angeles Community Impact (LACI) consulting, and Delta Sigma Pi. Going to be working full-time in investment banking in Los Angeles at bulge bracket, although many professors have encouraged me to pursue a graduate degree in mathematics.
Feel free to ask more about courses I took in high school, SAT stats, extracurriculars, competiveness of the program, transition to college, etc.