I am inferior to others, but I also satirize others. What is this idiom?

The word "pot calling the kettle black" comes from Mencius Hui Liang Wang Shang, in which "pot calling the kettle black" refers to those who retreated fifty steps in the war and mocked those who retreated a hundred steps for cowardice. Some people once used words to describe it. Some people laughed at other people's shortcomings or faults, but did not reflect on their own shortcomings or faults, only to a lesser extent than others. "pot calling the kettle black" is a kind of performance without self-knowledge.