^+1 Lots of water!
You should start using a retinoid ASAP, about 1 or 2 times a week (or potentially more, depending on your skin type and which product you use). Philosophy makes one you can buy at Sephora/online/etc that you use as part of your daily skin regimen (it's milder than "straight" retinoids - it's a modified version that causes less irritation on sensitive skin), or you can get a prescription for Retin-A (tretinoin) or a similar product. I find that tretinoin is the best product, but it requires more attention because you'll need frequent exfoliation. (And for the record, I highly recommend Cosmedicine's Medimorphosis as a weekly exfoliator - it can be used 3 times per week cuz it's super gentle.)
Daily I use Shu Uemura facial cleanser and Bliss' The Youth as we Know It toner and lotion. Works a charm for me.