Cosmetics good for pores

I've been using a serum that's supposed to be good for pores, but...

Looking at other people's reviews, it seems really good.

I don't see much effect when I use it.

Is it because my pores are large... or is it because I've only been using it for a short time??

I'm in my 30s, but my skin is worse than that of a 50-year-old who takes care of it... I'm so worried.

Please tell me some ways to manage pores in everyday life.

How long do you do the peeling? How long do you do the face mask?