Here's a short reminder from the pages of Clearings: Helping Lost Souls Find The Way Home, written in reflecting on a lost soul looking for a way to seek revenge to right the wrongs done to him:
You can let anger fuel your life. If you do, it will blind you and steal joy and happiness from you. That is the price you will inevitably pay.
Lay the anger down. Let it flow into the earth.
Come back to peace.