Have you read The Quest for the Historical Jesus Christ by Albert Schweitzer?
Interesting guy: won the Nobel prize.
He made a very determined effort to answer your question, and describes what he had come to know at the very end of his book. He found his quest very instructive for how to live one's life--witnessing his faith through a life of service as a Medical Missionary in Africa.
How scholarly have you been in making your determinations about Jesus?