Why do I hate a person so much?

Feelings of hatred or intense emotional dislike develop for many reasons. People might begin to hate another person or group when they: Feel envy or want what the other person has. They may consider it unfair that someone has what they lack.

How do you stop thinking about someone you hate?

Identify the triggers so you can interrupt and redirect your thinking. Create a phrase that you can say to yourself in those moments: something that's both a validation of your feelings and a reassurance that you can shift your focus. Give yourself permission to dislike a person and want to avoid them.