OK, atheist, you’ve convinced me, Allah, Muhammad, Islam and Koran are false, so how do I become an atheist?
Just have no faith.
That’s it, you’re done. Call yourself an “agnostic atheist”, if you need a label, and don’t pretend to know anything.
Also, it’s a sin to believe in “atheism”. Remember that, and don’t believe in atheism.
But, why, atheist, um, fellow atheist? Because “atheism” is literally this:
disbelief or lack of belief in the existence of God or gods.
Atheism, Google Definitions
Thus to believe in “atheism” is itself a false belief.
But, atheist, I really think there’s a god that causes everything and I feel, see, have him in my heart, he speaks to me, must be there, I have a soul, or some other reason? Then find out How to be a Christian?
Koran Contradiction 