When I make pizza dough, I have nothing to proof.
I've made thousands of pizzas and I've never had the yeast fail. So I don't proof my yeast when I make pizza dough. In fact, the only way it might fail is by proofing it with water that's hot enough to kill the yeast.
So I just add the yeast to the flour, salt and water and turn out authentic pizza that elicits pleas for dinner invitations.
Use a wooden peel. Keeps things drier and so less sticky. I also weigh in on the side of cornmeal. Start with lots to ensure the ball bearing effect, then slowly cut down the amount as you get comfortable with the action. Also, the faster you work building the pizza the less time for the dough to settle in and stick to the peel.