Fake for a Day

Personally, I like me.
Actually, only on Thursdays and Saturdays. Sometimes Sunday, never Monday, and on the third Friday of every second month.
When I close my eyes, I love what I see in the mirror. True beauty seen only in darkness. "Everyone is the same inside, so everyone is beautiful." What happens when I have different insides? Where in the rulebook does it explain how to be beautiful then? Can we just pretend I'm someone else, just for today? I'd like to be beautiful.
It will be Thursday soon. And I'm lucky, that Thursday is followed by the third Friday of this glorious second month.
Personally, I like me.