The separation of life on Earth and God is dumb. Your God (if you really wanna call it that) exists inside of you. So I guess you can say you are your own God.
Your spirit inside of you is on a mission of self-knowledge. Which is a near unreachable and unteachable path. The only thing that can guide your spirit is your spirit itself . When you listen to a pastor/guru/whatever you get of your path for the truth. No one can guide you and you can't guide anyone else.
To answer the guy above... I think when our human bodies decide to die, our spirit always knows what the next step to reaching selfknowledge is and takes life in a new form to learn from the new experiences that carry onto the next life.