It sounds to me that you just stuck with how you were raised and you didn't seriously question the existence of God or give it any real thought yourself. An argument atheists use on theists is that you just believe whatever your parents believed. The notion that God is some kind of myth, fairy-tale or unscientific can be just as much a cultural transmission as a religion can be and it can just as easily be wrong.
Come all ye faithful joyful and triumphant.