Some people in our lives are meant to be left alone. They are not bad people, but they are full of pessimism and jealousy. They can also be self-centered. They live in a bubble where they are judge and jury. Their worldview and actions will never come wrong to them. That constant itch of finding fault in others or why they are the best can make them a devil.
Your life should be around people who care for you and whom you both mutually respect. Also, you are no headmaster or mother fixing a troubled child. Please run away.