Pointing out everyone’s flaws is easy when you’ve stopped looking in the mirror.

Fault-finding gets easier the longer you avoid your own reflection. Attention is limited, so every hour spent cataloguing what is wrong with other people is an hour not spent on yourself, and that trade is comfortable enough to become permanent. Nobody criticises constantly out of high standards. They do it because looking outward hurts less than looking in.

Catch the next thing you were about to say about somebody and hold onto it. Ask whether the same charge would stick to you in a different setting. Then take one thing you can actually change in yourself and start there, quietly.