What 3 stages does Scrooge go through from Stave 1 to 3?

In stave 1, Scrooge learns that he will suffer divine retribution if he doesn't change. He experiences fear. In stave 2, he learns to have pity for himself as a child. In stave 3, he learns to have sympathy for those that are less fortunate than him and see some consequences of his actions.