re: How did the Big Bang happen?

Maybe you should try and find God yourself. Not a church or religion per se but God. I think most agnostic people are open to the idea of God. Just find the religion unappealing. At a minimum reading and TRULY understanding the Bible will give you a better understanding of how to be a better person. If it turns out there is no god you've lost nothing. But if it's the other way around then....