People have always wondered at the saints, that they are able to walk around serene, whatever happens. But that is because they can choose where they'll be. They don't have to be angry. You see the difference between having scattered emotions and having a fully vibrating, controlled emotional body. This body is made from energy created from choice, from the effort involved in making choices. But it is necessary to practice; then something is possible.
Unfortunately, change and forgiveness do not come easily for me, but ANY willingness to let go inevitably comes from pain; and the desire to change and forgive changes you, and jiggles the spirit, gets to it somehow, to the deepest, hardest, most ruined parts. And then Spirit expands, because that is its nature, and it brings along the body, and finally, the mind.