If one thing stays with you

Let it be this.

The pain comes from a standard that rose, not from a self that fell. Comparison is a measuring habit and not a defect in your character, which means it is something you do rather than something you are. And the criterion that actually counts is not visible in a photograph, which is stated in the text about as plainly as anything is stated anywhere.

You are not required to stop noticing. You are allowed to stop adding the second layer.