My skin is so sensitive these daysㅜㅜ

Even though I usually use a moisturizing cream, my skin feels stinging and my whole face is red and irritated. I keep getting pimples and they don't go away even when I use acne ointment. My skin is sensitive, but this is the first time it's been this bad, so I'm really worried. My skincare routine hasn't changed, but I'm not sure if it's because I've been stressed lately.

Anyway, for the time being, I think I'll just have to use mildly acidic cleansers and avoid any exfoliating or whitening ingredients. How do you guys deal with sensitive skin? Please recommend some good products or treatments!