You are a prisoner of your own limited thinking ability. Learn something else beside silly ancient ethnocentric Middle Eastern religious fairy tales. Where do complex elements come from? They come from the evolution of hydrogen atoms being cooked in stars. Where does hydrogen come from? It comes from sub-atomic particles. Where do the sub-atomic particles come from? They come from quantum foam. Where does the quantum foam come from? It comes from strings? Where do the strings come from? They come from nothing or from something else a step or two more complex from nothing. You have no idea how large the universe is. Imagine if the universe cosmos has as many separate universes are there are atoms in our own visible universe multiplied a trillion trillion times. You believe in a silly fairytale in which the hero says that the stars will fall to the Earth. He thought that stars were little points of light in the night sky. Even you know better than that, don't you?