Towards the end of the play how does Beneatha change?

Towards the end of the play, the ever-confident Beneatha begins to doubt herself and her goals. She feels a sense of hopelessness and disappointment. Beneatha is angry at Walter, frustrated by his selfishness. Beneatha's idealism breaks down as she grapples with her Walter's failure and its effect on her future. Asagai appears at Beneatha's most desperate moment, offering words of hope. He is able to use his knowledge of Africa's struggle for independence to provide her with encouragement, even while Walter struggles for his own autonomy. Through Asagai, Hansberry is able to connect the significance of global events to the individual. In the end, she announces her decision to leave with Asagai and become a doctor in Africa.