First of all, don’t let go of it too soon. Depending on the situation, it may have protected you from too much pain. However, when you are ready, say “thank you” to the anger, and allow it to depart from you. You don’t need to hold onto it forever. Say “Thank you for protecting me. Thank you for giving me the strength to do what I needed to do. Thank you for showing me that I am a valuable person and that I can make changes when I need to. Thank you for giving me the strength to deal with that situation.”
Ask the anger to come back into your life as a more productive and useful emotion.
You may be ready to forgive. You may be ready to be open to some changes in your life. Letting go of your anger does not mean that it was wrong to have it. Forgiving someone (including yourself!) does not mean that what the person did wasn’t wrong. It means that you are strong enough to heal from the pain. That pain that almost killed you didn’t. You developed “antibodies” that made you stronger than the anger. You are strong enough and well enough to forgive now. Forgiveness is part of healing. We all need to practice forgiveness. Too many things happen, and if we don’t forgive, we will eventually be poisoned, and our life will wither.
We are in charge of our lives. Other people can hurt us or help us, but they can’t be us. We can decide what stays, and what goes. Just like physical clutter, we may need to let go of anger in stages. Be patient with yourself during this process. Eventually, you will be free, and your life will be different.