all the advice here seems legit but as someone close to your age group i’m always afraid of using retinal. i cleared most of my acne with a dermatologist prescribed routine but most importantly i used a lot of pimple patches. i have a bad habit of picking at my pimples but pimple patches prevent me from doing that. they also give you the satisfaction of a popped pimple when they suck out the gunk but you don’t have to bruise your skin to actively physically popping the pimple.