Three steps handle most of it: gentle cleanser, moisturizer, and broad-spectrum sunscreen in the morning. That's a complete, effective routine on its own — sunscreen in particular is the most evidence-backed "anti-aging" step there is (randomized-trial support: https://doi.org/10.7326/0003-4819-158-11-201306040-00002).
Once that's a consistent habit, add one active for a specific goal and give it weeks before judging: a retinoid for texture/aging, vitamin C for tone, or a BHA for congestion. Add one thing at a time so you can tell what's helping (or irritating). Resist the 10-step haul — more products means more ways to irritate your skin and no way to know what's doing the work. Boring and consistent beats elaborate and sporadic.