How do I deal with the belief that maybe... Just maybe... God exists and I'm...

[Neo-Scholastic]

Yes, I think everyone here accepts the fact that the words we have attributed to Jesus were written by someone else. People who have studied the subject even a little bit are perfectly fine with the fact that the Jesus we read about may well differ significantly from the one who really existed. The writers were making the points they wanted to make. Plus we know that they interpolated elements of traditional biography which are used to indicate a character's significance. 

But when anyone says "In the Symposium, Socrates says....." it is acceptable to discuss the statement and what is intended by it. We can debate the meaning of the text without specifying every time that this Socrates is at least partly fictional. Debates about just how accurately Plato depicts the character of Socrates are interesting from a historical perspective, but not important when working on the philosophy. 

I'm sure you're right that certain literalists or sola scriptura types will insist on everything in the Bible being an accurate transcript, but I don't think anyone like that is posting here. And it doesn't affect the point that was being made.

The historical evidence is that the Jesus of history is not the Christ of faith that people believe in.

So what? The colors of lines on a road map do not match the actual greys of asphalt and concrete. Are you saying no one should "believe in" maps because they do not look like satellite photos?

If your reason for not trusting Scripture is because it does not satify modern expectations for bios and science text books...then you truly misunderstand the purpose of Scripture, which is to glorify God and guide us in our relationship with Him. To that end, Scripture is true and useful. But if you are the kind of person who gets all hung up on a talking snake then you probably are not interested in the spirtual significance of what you are reading anyway.