Lately, my skin condition has been worse than before, so I'm looking for some skin care tips.

A few days ago, I was startled by my reflection in the subway window on my way home from work. Perhaps it was the lighting, but the wrinkles around my eyes were particularly prominent, and my complexion looked dull. I spent a long time staring in the mirror. In my 20s, even if I stayed up all night washing my face, my skin would instantly look revitalized. Now, even if I slather on expensive essence, it doesn't seem to absorb well, which is frustrating. I'm trying to be mindful of my diet and drink plenty of water, but I haven't seen any noticeable changes, which is deeply concerning. Do you have any special skincare tips of your own? Simple stretching routines, cleansing techniques, or even a mask pack that you've found effective would be great. Rather than undergoing major procedures, I'd like to start by building a solid foundation, so I'm asking for your advice. My friends are trying to scare me by saying it's only the beginning, but I'm worried I'm taking it too late. Sharing your sincere skincare tips would be incredibly helpful. They say even small habits can make a big difference to your skin. What skincare tips do you consider most important? Any advice would be appreciated, and I'd appreciate it if you could share your valuable experiences. How are you taking care of your skin health during this seasonal transition?