But if god created everything, WHO CREATED GOD?!?!?!
It's an unsolvable question, by your reasoning, which is fundamentally correct, nothing should exist. Fact is, something did come from nothing at some point. It just as well might be with god as without. If a higher power does exist, he has to have come about spontaneously for no reason, just as much as the universe has to have done so.
We really need kfunk if we're to go through this, he recommended some reading I was meaning to buy on the fundamental question "why is there something, rather than nothing"?