Yes, you should judge others.
People often misuse Jesus’ words in order to tell others not to judge their behavior. Well, clearly Jesus wasn’t telling us not to be discerning. Later, he talks about discerning between the fruit of good trees and bad trees and the good and bad things people store up in their hearts. Distinguishing these requires judgement. No, he’s talking about looking down on others; do not judge or condemn. Discern what is good and noble, righteous and unrighteous, yes. Be arrogant about it, no.