Complex sentence: He struggled financially for nine years, at one point performing as a singing waiter until he was fired, and also working as a performing acrobatic diver before giving up show business to take a job selling aluminum siding to support his wife and family.
Split into simpler sentences: He struggled financially for nine years, at one point performing as a singing waiter until he was fired. He also performed as an acrobatic diver before taking a job selling aluminum siding to support his wife and family.