How do you manage dull skin during the change of seasons?

As I get older, I am very concerned that my skin is becoming dull, blemishes are increasing, and pigmentation is worsening. I am particularly self-conscious because my face looks patchy, possibly due to frequent exposure to UV rays, and it makes my appearance look unclean.

I am curious whether laser procedures or medication treatments performed at dermatology clinics are actually effective, and I would also like to know about the costs and potential side effects. Since it is not easy for me to visit the clinic frequently, it would be even better if there were care routines I could consistently practice at home.

For example, are there any tips that help alleviate hyperpigmentation regarding habits such as applying sunscreen daily, maintaining a diet rich in antioxidants, and skincare routines? I would be very grateful if those who have personally experienced this could share any know-how or recommended routines.