When something is still a work in progress in my mind, it is much easier to have a positive attitude towards criticism and see it as something that helps me improve. There's something I can _do_ with the criticism in these cases.
However, when I consider something as done and it is criticized, I can get frustrated and defensive. It's a bigger mental leap that's necessary to make the criticism actionable.
The simple (though not easy) solution is to consider nothing as permanently done.
