One person says it, it’s an opinion. Three people say it, it’s a pattern with your name on it.

One piece of criticism can genuinely be about the other person: their day, their taste, something between you two. That is why one is easy to set aside, and it is often right to. Three separate people, who do not compare notes, is a different kind of evidence. At that point the common factor is not a coincidence, and the question is what you do about it.

Think of something you have heard more than twice from people who do not know each other. Write it down in their words rather than yours. Then pick the one behavior underneath it and try changing that for a month.