what does Josh learn after the climax of Crossover by Kwame Alexander?

After the climax of "Crossover" by Kwame Alexander, Josh learns the importance of family, forgiveness, and embracing his true identity. He comes to understand the impact of his actions on others and seeks to make things right with his brother, JB, after their falling out. Josh also learns to cope with the loss of his father and find healing through his love of basketball and poetry. Overall, he grows as a person and becomes more empathetic and mature.