Through much of Christian history, we have tended to focus much more on the divinity of Jesus, often losing sight of the fact that he was first and foremost a person of flesh and blood who lived and died. Jesus was a man, but he was also much more.
Who is Jesus? Is God the only Son of God? Is He divine or not? Is Jesus God? The claim of divinity, equality with God, was not made explicitly until the fourth century in the Nicene Creed. The Apostle's creed, not written by the apostles themselves, but dating from the second century, calls Jesus "the only Son of God, our Lord."
The understanding of Jesus as the Son of God and then God the Son evolved slowly during the first four centuries of the Christian era. You can also learn more about Jesus history timeline via https://amazingbibletimeline.com/timeline_online/.
Jesus did not claim the title Son of God in the Gospels. He preferred Son of man, which simply meant a human being. Son of God was a title attributed to Jesus for the purpose of comparing the kingdom of God with the kingdom of Caesar, who also claimed the title of Son of God.
Various schools of thought on the nature of Jesus developed in the early years of Christianity. These included the extreme views, on the one hand, that Jesus was just a human being or, on the other hand, that Jesus was God pretending to be human.
The compromise viewpoint was that Jesus was both human and divine. His dual nature, mystical, was designed to avoid extreme opinions.