The way the brain works is this: We make a hypothesis about someone, and then our brain searches for information to verify our hypothesis.
For example, if we decide that someone is untrustworthy, our brain will find information to support that belief. In other words, we actively make our beliefs true.
If instead, we choose to believe that this same person is a flawed but good human being who is simply doing their best, we may find proof to back it up.
Be mindful of the hypotheses you’re making.