> As I see it life was clearly designed by God.

Which one? There are so many to choose from...

And what created that God? I know it's turtles all the way down but still want to know.

The dogma in many religions is that nothing created God or at least, there's no way to know. He exists outside our time and space. So from our perspective, God has always existed. If you believe that free will is true, then he can see all outcomes of the universe at once. If you don't believe in true free will, he sees the single timeline at once, from the big bang to the heat death of the universe.

Personally, I don't believe in any religions. They were all developed before we had a much clearer idea of how our world works and there's just too much folklore mixed in with actual, yet primitive, philosophical discussions to abide by any of it. But like with the simulation theory, we have no way to know what exists outside our time and space so you shouldn't worry. If there is some bored extra dimensional teenager simulating our universe on their GPU, it ultimately doesn't matter because we'll never know.

I believe that according to Catholic and Orthodox thought, God is Being itself. If you're familiar with Plato and Aristotle, God is the Form of Being. If not, I guess you could say God is Being as a noun, or God is where the idea of Being comes from. God exists because he is existence itself. (He is also Life and Love, in the same way)