Anger is simply needs unfulfilled. We just get angry at people thinking they will fill the hole inside of us. No one can’t. Not the person who loves you the most, not the one whom you love the most. No one can do it for you.
Some journeys are to be taken alone, and the journey of becoming a hero is one such. People will try to kill you and instigate your anger, just be the flowing river which nourishes every sinew it touches. Keep flowing and blessing. Work upon yourself without losing your calm. That is your real work.