Woz' retelling in Triumph of the Nerds (pbs.org/nerds) was that he had little-to-no self-confidence while working on the Apple I. The Apple I itself was a wooden box full of parts, barely suitable for a hobbyist, used to play simple games. The Apple II had a proper stylish case (with fancy logo), documentation, advertising, and a vision of a platform for personal computing to compete with the mainframe. It was a salable product, and extremely successful.
Mac was almost stolen outright from Xerox PARC
Also incorrect. The Xerox Star was an expensive prototype used for research. Many ideas were taken from the Star, but while the first Macintosh looks a lot like a modern computer, the Star was quite different, even having windows that couldn't overlap and other things we would now consider silly.
But, Jobs didn't create the Macintosh - he just hired the engineers who worked on the Star to join his great engineering team to polish and productize it. His contribution has always been to set the bar and only allow things that are great into the final product. This is possibly the most important thing an executive can do, but rarely properly executed.
Cringely did a good job with Triumph of the Nerds (based on his book "Accidental Empires") - if you haven't seen it, I'm pretty sure that you can find it on YouTube.