I am letting go of all the anger and bitterness.

Anger is usually the last thing to go, and there is a reason for that: it did a job. It is what got somebody out of a house, or through a hearing, or up in the morning during the year when nothing else would have.

You don't throw away a crowbar that levered a door open. You do eventually put it down, because carrying a crowbar everywhere changes how a person walks into rooms, including rooms with no doors in them.

Bitterness is what happens when it stays in the hand too long. The tool starts to shape the grip.