How often should I use a sheet mask?

Hello. Lately, with the end-of-year and beginning-of-year rush, frequent company dinners, and overtime, my skin has been incredibly tired and flaky. It's to the point where I wonder if this is really my skin. Yesterday, I was looking in the bathroom mirror and was shocked by how dull and puffy my face looked under the fluorescent lights. I used to just put on a sheet mask whenever I remembered, but now I feel like I need to be more systematic, so I'm seriously considering how often I should use it. I'm also worried that if I use it too often, it might actually irritate my skin. For those of you who prioritize hydration, I'm curious about how you manage your sheet mask frequency. I'm thinking of starting with every other day, but that's probably not too frequent for a busy office worker. I'm sure we all want to maintain clear skin even in our daily lives. Could you share your own effective sheet mask regimen?