A Pardon

 You don't forgive or pardon another person who has done you an injustice so that they will do better or change for the better.  Generally, when you protest, or demand justice, the perpetrator stays the same.  For one thing, they don't see it at all your way.  So the reason I pardon another person is to heal the wound in my own heart.  You know when you have truly forgiven because you can feel your heart change to a more peaceful tenor.  I am not saying there is no place for anger, but don't expect it to change people who are treating you with an injustice.  Sometimes a person will have a change of heart who has been hurtful, but that takes time.  Maria Goretti forgave her killer as she was dying from his knife wounds.  He went to jail. Eventually, he saw the error of his ways.  He was present at her canonization.  Of course she was dead.  You don't always last long enough to see the fruits of forgiveness.  But I feel that you will know the results of your rage and anger rather more quickly, and it may not be so positive as you expected.