In what ways does Junior's identity change once he attends Reardan, and are there any ways that he remains the same person?

At the beginning of the novel, Junior describes how living on the reservation makes Indians lose hope. He uses his parents as examples of Indians who did not follow their dreams because nobody ever believed in them enough to support their ambitions. A desire to break out of this cycle of poverty and destitution motivates Junior to transfer to Reardan. Once at his new school, Junior immediately notices that his new classmates have endless hope for the future. Though he wrestles with the feeling that he has betrayed his tribe by attending Reardan, Junior is also realistic about the fact that staying on the reservation would not offer him any opportunities for advancement. Junior retains his wit and his critique of life on the reservation juxtaposed with his life on the "outside" but I think his worldview has changed.