I came upon a little bit of wisdom in an interview with artist and entrepreneur Leonie Dawson. This is the best answer I’ve ever heard to the question of who’s criticism you should value.
Question: “How do you deal with people’s criticism?”
Leonie’s answer: “Ignore anyone’s advice / criticism / judgements unless they are genuinely happier than you.”
Brilliant! What an important and powerful way to look at the world.