You clearly do not understand the command. The Lord was speaking to the Pharisees who looked down on the multitudes. He is warning them that how they judge (look down on others) will be how they are judged. The warning to get the log out of their eye is to one who cannot see at all. They are lost. The one who has a small spec in his eye is one who sees but not clearly. The command is not to a believer. In the passage both are lost. One is blind and one sees but not yet good enough.
To point out what scripture says and warning someone that they show signs of being lost is not judging. If you have faith you can believe that we can know them by their fruit. If you don't have faith you will not believe what is written.
Lk 18:9 And he spake this parable unto certain which trusted in themselves that they were righteous and despised others.
Outwardly, any would say the Pharisee was a much better man than the publican, but God saw the heart. The Pharisee believed himself righteous because he followed the law, while the publican confessed he was a sinner and trusted in God's mercy. The publican alone went down to his house justified.
I am glad you do your best to obey the Lord, we all should. But be careful you do not despise others.