God wasn't made. He always has existed. Now, you make a good point by stating that life could just be "here", but science has already proven that there is a beginning. Now you could say that super molecule that started it has always been here, but then how would it have exploded if it was going on indefinitely? The only possible answer I've ever heard somewhat clearly answer this question is that the universe is slowly contracting to the size of a molecule, then exploding and expanding to what it is today, only to be sucked back in and start the process over again. Now I have some personal theories as to why this wouldn't work, but I won't state them because they'd be misinterpreted as fact.
What? Dude, get the basics of your facts straight!
Science has, no no means, proven that there was a beginning to...reality. The big bang supports this, but its a theory. Not proven. I subscribe to a theory that the universe expands and colapes every dozen billion years or so. Thus, no beginning.