You don't even understand my argument, if faith in god is the only free will we have, everything else that happens to us is not in our control, it's because of god. How do you lose faith in god? Is it not because of your environment? And isn't your environment written by god?
God directs the results that happen to us because of our faith, faithfully. What I mean is, our faith is so weak that it can't do any more than be in favor of God or against Him. God perfectly looks at our faith, and makes the things happen that our faith would have done if it were strong enough.
Your first question should be, Does anybody lose faith in God? After all, to have faith that is against God still recognizes that He exists.
Environment has nothing to do with your faith. It might have a lot to do with how you display your faith.
Everything you typed makes no sense, after all I'm not going to convince a deluded person, he can just type shit like this and believe it. Perfect example of how religion destroys your mind. This is your argument:
1. We start believing in god, even when we are in the womb
2. Somehow people stop believing in god.
3. How does that happen? Their faith becomes weaker but how does their faith become weaker? Doesn't that happen because, someone told them or someone convinced them, etc etc? All of those things are controlled by god so god is making that person lose faith and he knows it because he knows everything, therefore god is responsible for everything and humans shouldn't be punished at all.