Is the Old Testament Making Anyone else Doubt the Existence of God?

The bible is prone to misinterpretation and is also full of contradictions. I'm surprised anyone still believes it. I don't know the truth - no one does for sure and anyone who claims they do is arrogant and close minded. I prefer to learn as much as I can each day, keep an open-mind and believe what makes the most sense to me. For me, that is atheism but obviously I can't be 100% sure.