How does Harry Potter change or evolve throughout the first book, Harry Potter and the Sorcerer's Stone?

Harry Potter experiences quite a transformation in the first book, Harry Potter and the Sorcerer's Stone. In this first novel in the famous magical series, Harry Potter is introduced as a malnourished and emotionally abused child who is living with the Dursleys, his biological aunt and uncle and horrid cousin, in a rather boring English suburb. Harry, who has a peculiar lighting-shaped scar on his forehead, is living with the Dursleys because his parents tragically died when he was just a baby. The Dursleys treat Harry with disdain and cruelty. On Harry's eleventh birthday, that the Dursleys intentionally do not celebrate, he is introduced to the secrets of his past and his wizardly powers by Hagrid, the groundskeeper of Hogwarts, who is tasked with finding Harry and escorting him to Hogwarts. Once Harry learns that he is a wizard and that his parents were killed by the evil wizard, Voldemort, he sets off to Hogwarts with Hagrid to further discover who he truly is and to hone his magical abilities. This is the first major transformation for Harry. Once Harry arrives at Hogwarts, he soon realizes that he is very unique, even among other magical people. While he makes two very close friends, as well as a couple enemies, Harry soon is thrust into a confrontation with the dangerous Lord Voldemort, who is attempting to kill Harry and return to power. This is the second notable transformation for Harry, in which he must learn to use his powers to fight against Voldemort. He soon learns that he will not be able to be a normal young wizard like his friends as long as Voldemort hunts him.