Let dough get to room temp.
DO NOT knead the dough.
Sprinkle peel with corn starch.
Shape dough into ball and use roller to spread onto peel.
Lightly baste with olive oil and add toppings.
Preheat oven and pizza stone at 500.
Cook pizza on lower rack until done.
Your dough ball looks like it dried out a lot... was it left uncovered for a while?
I would say preheat oven comes first... if you are using a stone especially you need to let that heat up for at least 30-45 minutes.
Also I believe it is corn meal not corn starch. You can use just flour as well.
"Not sure what you mean by shape dough into ball and use roller to spread onto peel". I don't like the sounds of that. :-) Shape the dough by hand and preferable not to use a roller.
"You cook it.... Until it's DONE!"