Can you explain to me how you came to have this faith?
I think that last time you asked this question it turned out that you and I mean slightly different things by atheism.
I don't believe that it is proven that no God exists, it is just that I don't see any evidence in particular that any of the numerous deities worshipped by people through the ages does exist. No faith is required for my position. Those who label these things precisely call my position "weak atheism". Strong atheism, or the belief that it is a definite fact that no God of any kind exists is actually very rare in my experience.
Don't get me wrong however. When you get to *specific* beliefs as opposed to the general concept of a deity it is abundantly clear to me that the physical evidence demonstrates that the God of the Old Testament who created the world about 6000 years ago and killed everyone in a global flood about 5000 years ago is either a myth, or carefully concealed the evidence of His actions, perhaps because He doesn't want people like me, who examine the physical evidence, worshipping Him.