I make individual thin crust pizza all the time. But when I buy frozen pizza dough it always comes in very large portions. Here's my tip to have ready available small portions, perfect for an individual pizza. I do the same thing when I make pizza dough from scratch.
Wrap them in Glad Press n Seal so they do not get freezer burn or dry out. I found this is better than saran wrap or a plastic bag because it seals the air out.
Put them back in the freezer. When you want pizza, all you have to do is thaw out only the amount of pizza dough you need!