When people judge you, this happens
When people judge you and what they say goes in one of your ears and out the other, you're demonstrating one thing: you couldn't care less what they think. This is the posture we should adopt.
No one can make you feel bad about yourself without your consent.
Why should you care about what they say?
No one's a better judge of your character and personality than you. No one knows you better than you know yourself.
Why give such judgments any importance when, at the end of the day, what you think about yourself is all that matters?
If you judge yourself to be lazy, rude, hurtful, or irresponsible, it's up to you decide whether those traits ought to be changed. Change them because you wish to do so, not because others are prodding you to.
If you judge yourself to be bookish or ambitious, it's no one's place to tell you to change those qualities. If you're happy with yourself, that's all that matters.
Don't give others the pleasure of judging you when they may not know everything that's going on in your life -- the battles you face, the experiences that have molded you into the person you are today.
The ones who spend all their time passing judgment ought to look at themselves in the mirror first. Those who judge others are trying to overcompensate for their own shortcomings.
Judge yourself. Don't let others do it for you, as they have never walked in your shoes.