What role does Gilgamesh’s anger play in his actions?

When we first meet Gilgamesh, his anger controls his actions. He is quick to action, impetuous, and lacks a moral compass. Over the course of the novel, we see Gilgamesh find an inner strength to match his physical strength. We also see how his experiences and newfound knowledge mold him into a vituous man and a fair, level-headed King.