I'm worried about sensitive facial skinㅜㅜ

My skin is extremely sensitive, especially my face.ㅜㅜ Even a little sunlight makes it turn red and blotchy, and when dust gets in, it becomes bumpy and red again. Sometimes, even when I cry, the salty tears make it flare up like atopic dermatitis, and I have to apply prescribed ointments from the dermatologist to calm it down.ㅜㅜ Why does this happen... The hospital doesn't tell me the exact diagnosis🤬 I also have a metal allergy, so I wear jeans and apply nail polish after putting it on, and I use dermatological skincare products. Sigh... I'm so worried about my skin~~ㅜㅜ It's a lifelong struggle.