Hi! The best thing you can do as a sophomore is prepare the best you can for junior and senior year. That means maintaining grades, preparing for the PSAT, and - most importantly - establishing your extracurriculars. That last part is critical because it's not something you can really do later. Colleges view time as an indication of commitment when judging your extracurriculars, so it's vital that you establish those interests early so you can excel in them later. Hope that helps!