I just make sure the voices that criticize others are louder.
By balancing them out with positive ones.
Very hard. But you can try and counter then by actively being a self -positive voice for yourself. When ever you catch that self -critical voice putting you down. Start saying positive things about yourself to add some balance to your perspective.
By holding the cold light of logic on them.
I have another shot of tequila. It mutes the voices.