It’s never too early to start prepping for college. Class 10 is ideal for foundational work: maintain strong grades, explore interests through activities, and read broadly. Use Class 11 for SAT/ACT preparation (take first test by December-March of Class 11), deepening extracurriculars, and researching universities. Class 12 focuses on applications (essays, finalizing test scores, recommendation letters) with deadlines typically November-January.