Your peel is warm, the pizza is sitting on it too long, or a combo of both.So have been attempting to get into this a bit with pretty mixed results including a couple disasters. I bought a pizza peel thinking that would help but wasn't able to slide the pizza off the peel so got a very mushed pizza. I did watch a video on flouring the peel but just wouldn't slide off. So I'm thinking next time either 1) have to put the dough on the pizza stone after preheating the stone and then add the sauce cheese and toppings on the stone or 2) Make two smaller pizzas instead of one big one, the pizza I made was prob close to 14 inches.
Anyone have any suggestions/tips?
Make sure it is properly flowered - maybe mix in a bit of semolina to the flower on the bench, works a little like marbles in the flower.
And always give the pizza a gentle little wiggle on the peel before you launch it. That way you'll know it will slide with confidence.