Criticism may not be desirable, but it is necessary. It fulfills the same function as pain on the human body. It calls attention to an unhealthy state of things.
Constructive criticism may feel uncomfortable, but it is how you respond that will determine if you learn or grow from it. Ask God for the humility to be more open-minded to those who are trying to help you.
Whoever heeds life-giving correction will be at home among the wise.