I did most of the stuff on this page (short of breaking my self-cleaning lock). It is all great advice, and if you follow it and practice a lot, you can make great pizzas and wow your guests.
BUT! After you have done that, you can also violate all the rules and still get great pizzas. Once, I was in Waipio Valley in Hawaii, with just Pillsbury white flour, bread yeast, a block of cheddar cheese, Wesson oil, tomato paste, fresh oregano, and spring water. To bake I had a gas oven with the rack out, a tall soup pot, inverted with a big skillet also inverted over it, close under the broiler. The pizzas came out fantastic! I could only make them 9" across, so I ended up making 30+ of them.
I had no peel. My dough was very, very wet; I scooped enough for each pizza with a big kitchen spoon, spread it out on parchment, drizzled Wesson, smeared tomato, sprinkled oregano, salt, and cheddar, slid it onto the skillet, and started on the next one.
The one thing you mustn't ever neglect is letting the flour and water proof for 40+ minutes before you work it.
To get decent pizza at almost any American restaurant, you have to insist "burn it!" or they will be afraid you will get mad about a little charring, and so undercook it the way Americans demand. You have to tell them that if it bends, it's not done enough.