How often should I exfoliate for good results? ㅠㅠㅠ

I'm trying to exfoliate consistently, but I'm so confused about the frequency. Some posts say to do it once a week, while others say doing it too often is bad, so I really don't know what the standard is.

I tend to get a lot of dead skin cells, especially around the sides of my nose and chin, so if I don't take care of it even a little, my skin immediately feels dry and flaky lol. So I want to exfoliate frequently, but I'm worried that if I overdo it, my skin might become even more sensitive.

Also, I feel like my skin gets smooth right away after exfoliating, but it seems to go back to its original state after a few days, so I'm worried about how often to schedule it. If I do it too sporadically, it doesn't seem to work, but if I do it too often, I'm afraid it might irritate my skin.

I’ve heard that the exfoliation cycle varies depending on skin type, so I’m wondering if those with dry or sensitive skin need to be extra careful.

For those of you who have consistently exfoliated, please let me know how often you found it best to do it!! I'm also curious about the methods that helped improve your skin condition~~