How Do We Know Jesus Existed?

In this episode, Dr. Betters answers the question, "How do we know Jesus existed? I’m 15 years old and I’m somewhat new to Christianity but there’s something that has been holding me back. I believe in God 100% because I believe the universe has to have a creator of some sort but I’m torn between whether he had a son named Jesus. All I ask is you can help me and give me evidence to further my faith because I believe the only 2 possible religions could be Judaism or Christianity and I’m torn between whether Jesus is real. Thank you and God bless"