Lately, whenever I look in the mirror, I worry that my skin doesn't look the same as before. Do you have any tips for managing it?

Last weekend, I met up with some friends at a pretty cafe for the first time in ages, chatted, and took tons of pictures. But when I got home and flipped through the photos they sent me, I suddenly felt so unfamiliar that I stared at them for a long time. My complexion, which used to look clear even without retouching, now looked dull and lacked elasticity, even under the lights. The fine lines around my eyes when I smile seemed deeper than before, which was especially frustrating. I'm wondering if it's time for a more systematic skincare routine, so I've been compiling my own skincare tips, but I'm not an expert, so I'm feeling limited. I've been increasing my water intake and applying face masks every night, but I feel like these aren't enough. I'd love to hear from you about your own skincare tips. Expensive treatments are great, but I also welcome small, everyday habits and dietary changes. I'm sure you all have a special skincare tip you stick to, even in your busy schedules. If you have any recommendations, would you be so kind as to share them with me? I'm really curious to know how other people are finding their vitality these days.