How to stay away from a person?

Try to do your job well, don't give him excuses, be yourself, be humble to him, keep a certain distance from him and be the most general friend. If he bullies you once or twice, don't be patient. Fight back the third time and let him know that you are not easy to bully. The most important thing is to live your life and do your job well, and don't let him influence you.