What kind of home care is suitable for my sensitive skin?

My skin is seriously, seriously the epitome of sensitivity.

It tends to turn red easily with temperature changes, and

A very, very extreme condition that immediately manifests as redness when using even slightly irritating cosmetics

I have sensitive skin. That's why I can't just switch my cosmetics or even my cleansing products carelessly. Are there others with sensitive skin like mine? It feels like my skin barrier has completely collapsed.

My skin is sensitive, so I think I need to fix it starting from the root cause.

I really need someone to recommend some simple home care products to soothe my skin. Please 🙏