I was born into a religion free house, my parents never took me to church. My Mother was Catholic when she was growing up, but not once did she ever try to influence me.
I used to be oblivious to the whole God/religion thing. I don't even think I understood what the idea of God was until my second year at Christian school. It was at that point I converted, I attended church once a week with one of my friends and I prayed once a night. I'd try to read the bible but it was just so big and slow I failed, but I figured God would love me for trying.
I used to love it, it was so much fun and I was doing what GOD wanted me to. I can remember a few times in bible studies though, when I knew Christianity was a load of crap. I think it was the story of Moses that really set me off. It's just, once you're in the church. You become ignorant, you're brain doesn't function properly. You throw all reason out the window. As long as God says it, it's right, (or the pastor, most people don't know the difference).
I was happy though, I eventually got out of that Christian school and went to a public school. I also dropped out of church, and then it hit me. I was an atheist. Christianity, Islam, it's all ****. The only thing that prevented me from thinking I was an atheist was the CONSTANT pressure to maintain and prove your dedication to God. "If I pray outloud, people will think I love God more" "If I wear this cross..."
Originally it was man made religion that turned me away from the idea of God, but the more you think about it, the more impossible it is for a God to exist.
Right now, I'm an AA (Active Atheist) as I like to call it. I will activily debate anyone, and everyone on religion, creation. And I'll win everytime, but the horrible thing is, religion blinds people. Their mind will not let them think that God doesn't exist, they're stuck. I want to help them.