Uchiha Sasuke : Mending the past where should be return

Uchiha Sasuke was a youngest son of Uchiha Fugaku and Uchiha Mikoto. He was also a little brother of Uchiha Itachi. The 4th war had ended with Sasuke and Naruko who win. Sasuke and Naruko were married in two years after the war and have two kids. Sasuke thought that they will be happy after their marriage and have kids. Even so, Sasuke felt lonely when he with Naruko. He can feel that Naruko not happy with him. Naruko may smile and happy with him and their kids but he can see her eyes not show happiness like him. He felt like Naruko hide something from him. Sasuke had come back from shopping as he done buying groceries for Naruko who cook for him. He had go to his room and find something in the drawer. It was shock him when he learn something that Naruko never show or telling him. Sasuke realise that Naruko never love him like he love her. Naruko only love him as her brother. He felt hurt and regret that he make her suffer. He wish that he can go back to the past and fix anything. His wish seem granted that he wake up saw that he was in a 5 years old body. Sasuke realise that he going back to the past where no Uchiha massacre happen. Sasuke decided to change everything and told Hiruzen.

Will Sasuke success change the past? Can he fix everything that happen from his past life? Can he success return Naruko's happiness to someone she really love?