Beginnings are usually the best places to start. The Bible is no exception.
Claiming the Genesis account developed from the Epic of Gilgamesh is certainly conjecture, but it is much more.
If God made everything, then who made God?
You can examine or enjoy nothing rightly and appropriately without understanding it as God intended.
To begin to understand ourselves, we must ask the One Who made us, who drew the blueprints and knit us together Himself.