[Acne] i’ve tried everything and still have acne

about a year and half ago i never really had acne other than a few pimples here and there (19f). i started to get into skin care and used some basic serums like hyaluronic acid and niacinamide. then my skin started breaking out and im not sure if the additional products triggered it or it was just a timing coincidence. i tried a benzoyl peroxide cleanser and salicylic acid and nothing helped. this whole time and years prior i’ve been using moisturizer and sunscreen.

a few months ago i went to a dermatologist and started tretinoin, clindamycin, and morgadox (which made me sick so i stopped). my skin is much better than it was, but i still breakout constantly, especially along my chin. it gets irritated from the tretinoin and is often dry and flaky with some redness, but i stop using it for a day or two if it gets too bad.

now im just using those two prescriptions, a gentle cleanser, and moisturizer at night and usually just moisturizer and sunscreen in the morning since i don’t have time to wash my face and everything. i drink enough water, but my diet isn’t great. any ideas on what could be the problem or how i could fix it?