I have a lot of concerns because of my suddenly turned sensitive skin.

I used to be fine with any makeup I put on, but these days, even the slightest change in the weather makes my face red. It's especially frustrating when I put on makeup in the morning because my skin feels rougher. It also stings when I come home from outside, so I'm very careful when washing my face. I'm not sure if it's just my sensitive skin, but even my usual moisturizer feels like it's just superficial. I used to hear a lot about my skin being in good condition, but I'm not sure if it's because I neglected skincare or if it's simply a matter of my skin's condition. I've tried using face masks recommended by friends, but they seem to irritate my skin, which is scary. Worst of all, if I don't apply foundation right after washing my face, my face feels incredibly tight and uncomfortable. I've been looking for gentle products, but when I actually buy them, I'm hesitant because I'm worried they might not suit my sensitive skin type. It's incredibly stressful. Has anyone else suffered from sudden, sensitive skin like I have? I'm curious to know what routine you use to calm it down. If you have any recommendations for gentle cleansing methods or essential skincare products, please let me know.