I need help! (Update!)

So I like makeup but cannot wear it because of my skin problems. Dry skin and I have acne really bad.

I need help on how to improve my skin. I’m seeing a dermatologist and nothing is helping. She can’t prescribe any more creams because the ones I’m on dry out my skin already and they are the most mild. I wash at night with cerave and moisturize with cerave. I wash with just warm water and a rag in the morning to not dry out my skin. And I use the retin-A cream 3x a week and the clindamycin every morning.

Any suggestions would be great. As in anything diet changes, lifestyle changes, different topical and stuff etc.

This is me. And no I’m not a teenager I’m 21 I should have better skin than this!! Lol

Update 1: Ok guys from my research and your help I’ve made a list of things to do in the next 6 weeks along with my usual face wash routine to try and see if my acne improves.

I only said increase water intake by two bottles because I drink between 2-3 a day already but I do know it was better when I was drinking about 6 a day a few months back.

Is there anything I should add that’s an easy step? nothing too major at first of course I don’t want to shock my system.

Update 2: so it really doesn’t look much different but I’ve been doing the list of things above for a week along with a new facewash from my dermatologist. It doesn’t really look different but I can feel the difference. My skin isn’t as bumpy and dry and I feel like my acne that was already there is healing instead of getting worse. So thank you for the recommendations everyone they have seemed to work!