This is the story of Dylan's life, really; his ego, laziness, and lack of discipline and morals contributed to his spectacular downfall. He had significant potential and could have had an impressive career or education to his name, but he could never get his priorities straight long enough to accomplish anything meaningful, aside from those short-lived wrestling matches.
He was essentially a medium-sized fish in the small pond of wherever he lived, but once he transitioned to a major city where his peers were not only smarter but also more focused and determined than he was, it quickly deflated his ego.