Fear, anger, pain. In certain cases, they can start an action. Yet, you need to leave them behind as soon as your action crystallizes and takes a concrete shape.
If you fail to do it, you’ll soon find yourself projecting that initial, important emotion on every body and every thing around you. You will burn down bridges, forgo opportunities, isolate in your own narrative.
Remember fear, anger and pain, but leave them behind as soon as you can.
The change you are seeking demands it.