problem with stretching dough

I always seem to have the same problem when I’m making a pizza and it comes time to stretch the dough. I always end up with the outer part of the circle thicker and 1 or 2 holes in the middle. Some times the middle is way too thin and I end up having to patch up the hole. How can I avoid this I have no idea how to prevent this problem. Does anyone know what it is that I’m doing wrong or have any stretching suggestions?

Here is what I do -
-from the point when its time to let the dough rise I make a losely packed ball and place it in a warm place for 45 min

-then once its doubled in size I make a more compact disc shape and coat the dough one more time with flour on both sides

-then i use both hands to push down on a flat surface and stretch the dough
-and finally here comes the hole - I use my 2 fists to stretch the dough. I start on the out side and try not to work my way in too much

somethings wrong here i need help lol