How do you manage your sensitive skin, which becomes especially sensitive during the changing seasons?

Lately, I've been feeling a growing sense of frustration every time I look in the mirror, so I'm writing this. I used to be able to quickly adapt to any cosmetic product, but now, even the slightest irritation causes my face to redden and sting, which is a real concern. Perhaps it's the changing seasons that are making my condition worse, and I'm worried. I have a strong feeling that my skin type has changed. Even after washing my face, my face feels tight and sensitive, so choosing basic skincare is a major challenge. Even applying soothing creams doesn't make much difference, which is frustrating. I'm at a loss as to how to even begin caring for my sensitive skin. Trying to understand each and every ingredient in a cosmetic product is overwhelming, and I'm afraid I might ruin it if I use the wrong one. Finding a gentle, well-suited product seems like a daunting journey. Do you have any products or lifestyle habits that you've settled on after struggling with sensitive skin like I do? I'd really appreciate any advice, even if it's just a small tip.