A big problem is this:  The Gospels weren't even started to be written down until 50 years after Jesus died (and MANY RC biblical scholars in good standing think that The Gospels were written not by Matthew, Mark, etc., but by the community of Matthew, the community of Mar, etc.).  By that time (50 AD) all the Epistles (primarily Paul's) had been written down.  And there is good reason to think that The Gospels were written in conformity (to a greater or lesser extent) with Paul's epistles and, consequently, among other reasons, there is good reason to think that not everything in all The Gospels is factual.  So trying to find out exactly who Jesus was -- the Jesus who never ever called himself The Son of God (Paul did) -- becomes difficult.  I'm trying to 'cut to the chase' on very complicated matters -- but you get my drift, I'm sure.