Personally, I do not doubt the existence of Jesus as a Historical Figure. But the Gospels and later writings have to be taken for what they are, not what we want them to be.
Yes, they may, possibly, record some of his words, with probably doubtful accuracy, but certainly a lot of the deeds he is supposed to have done, and events around his death, all smack of Fiction.
There is a lot more about the Gospels that mean they were never written as Histories or verbatim reports of conversations etc, but were written to bolster the nascent Jesus Movement. Each Gospel writer has an agenda, that colours his writing.