I am worried about the corners of my mouth drooping.

Lately, I'm self-conscious about the corners of my mouth whenever I take photos.

Lately, when I have a blank expression, the corners of my mouth look like they're drooping, so I think my facial impression has changed.

I am especially self-conscious about looking tired or depressed, so whenever I look in the mirror or in a photo, I find myself checking the corners of my mouth first.

I look fine when I smile, but I usually look a bit down, so I'm worried that I might look angry or in a bad mood for no reason...

I'm curious if it's just a simple facial expression habit, or if it's because my skin elasticity or facial muscles have changed as I've gotten older.

Has anyone tried managing drooping corners of the mouth? Please let me know if there are any methods that helped, such as facial expressions, massage, exercise, or procedures.