What made you decide there was no God?
Basically, all the arguments for God's existence strike me as self-serving wishful thinking, or at least so fallacious that the believer would never think of using the same kind of arguments in any other area of their life.
The same "logic" she used to decide that she is the only one with a mind and others are merely pre-programmed robots. LOL
I consider myself more of an agnostic, but one of my favorite quotes sums up why I don't believe that the Christian God is necessarily the "right" God.
"I contend that we are both atheists. I just believe in one fewer god than you do. When you understand why you dismiss all the other possible gods, you will understand why I dismiss yours." -- Stephen Roberts