How do you manage skin problems?

These days, every time I look in the mirror, I sigh. Before, my face seemed smooth after just washing and applying basic products, but these days, the reflection in the mirror every morning feels unfamiliar. It's especially frustrating because even the slightest sign of a problem quickly triggers my skin. Yesterday, I had an important appointment, so I tried to go to bed early, but when I woke up, I saw a red, irritated skin. I tried to cover it up with makeup, but it only made me feel worse, and it seemed to get worse as time went by. People around me tell me to get enough rest, but it's hard to avoid stress in this busy life. I've tried changing my diet and using expensive face masks, but I feel like they're not helping me find a fundamental solution. My skin breaks out again quickly, and I'm deeply concerned. More than anything, the stinging sensation and rough texture after washing my face are truly stressful. My skin, which I used to ignore, now reacts so sensitively that I realize I need to take better care of it. How do you manage these sudden skin problems? If you have any good habits or routines that have worked for you, please share them with us.