I need 3 evidence to find out how Holden change his life.

Holden does not really change his life. At the end of the novel, he buys Phoebe a ticket for the carousel at the nearby zoo, and as he watches her, he begins to cry. Holden ends his story here. He refuses to relate what happened next and how he got sick. He notes that people are concerned about whether or not he will apply himself next year. He ends the story by relating that he misses Stradlater and Ackley and even Maurice.There is no real evidence that Holden changes his life.