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wellbeing
Criticism needs credentials
One small thing you could do
Take the criticism currently renting space in your head and run the credential check on its author: would you ask this person for advice about your life? Write the yes or the no. A no doesn't argue with the criticism — it just revokes its lease.
Before their words get any weight, ask whether you'd ever go to them for advice. Asked honestly, that one question clears out most of the crowd.