How Come Jesus Didn't Exist Until 200 Years After He "Died"?

If I screamed loudly that I was God, nobody would believe me. Why would anyone believe that someone who supposedly lived 2000 years ago that said they were God? I would like to know that if Jesus was so important and what he had to say soooo important, then why didn't he write the bible, or any part of it. I don't want to talk to the monkey, I want to talk to the organ grinder!