I'm not sure if they are melasma or blemishes, but they are increasing. How do you manage them?

Since the beginning of this summer, it seems like I am getting more and more light brown spots on my face. At first, I thought they were just blemishes, but looking closely, some parts seem to be spreading out like melasma, so I am worried. Even though I try to apply sunscreen every day, they feel like they are getting darker, so I am very stressed about it.

Makeup covers it up to some extent, but when I'm barefaced, my skin definitely looks messy and gives off an overall dull impression, which lowers my confidence. I've also tried using whitening cosmetics for a few months, but I don't really notice any significant changes.

I've heard a lot of recommendations for laser toning; were those of you who have actually tried it satisfied? I'm curious how many sessions were needed to see results, and I'm a bit scared because I've read that melasma can actually get darker if not managed properly. I would appreciate it if those of you who have had similar concerns could share your experiences.