In my case it wouldn't take you five minutes to disprove my claim. It probably wouldn't take too much more to dispose of yours. But when it comes to Jesus of Nazareth, it's not so simple. He had the credentials to back up His claim. First, His moral character coincided with His claims.
Many asylum inmates claim to be celebrities or deities.
But their claims are belied by their characters. Not so with Christ. Jesus was sinless. He was met by silence, even though He addressed those who would have liked to point out a flaw in His character. This lack of any sense of moral failure on Jesus' part is astonishing in view of the fact that it is completely contrary to the experience of the saints and mystics in all ages.