Creation from nothing

Hello Rabbi,
I wanted to ask if indeed everything has a cause. And God is the cause of himself. How could He have created the universe before it existed? After all, it is a creation out of nothing. What is better than assuming that there is a God who created the world out of nothing. Rather than assuming that the world was created out of nothing?
After all, even God does not have the material components to create such a creation. And if so, then He too has a reason.