People without God in their lives cannot comprehend what they're missing...except to feel the ache and misery that humans separated from God must feel.
I did have God in my life once, I don't miss it. And religion doesn't solve your problems, it only helps you cover them up.
Careful of your wording. To say you once had God in your life would indicate an acknowledgment of existence.
I can see that you have a personal bone to pick with Christianity. So what happened? I know there's a story, or multiple.
I was once a Christian too. While I have my own issues with revealed religion, sooner or later you want to move on with your life. You say you don't miss it, but you do appear to have a good deal of anger and bitterness about it. I've always felt that atheism tends to foster that. Are there exceptions? I don't doubt it, but based on the posts by most atheists that I see on USMB they are an angry, bitter, depressed lot, and yes, in some cases, smug. I may argue with Christians a lot on this site, but I at least understand that there is a certain level of earnestness among them, while with atheists I rarely see anything other than scorn and derision. Christians may attack your beliefs, but I always get that they at least don't hate or wish me harm (most of the time anyway). This is why I have never really turned my back on God, and why I continue to feel a relationship with my Creator.
Nothing happened, I just realized one day why religion was created and that there is no way god exists. I also didn't want to waste my life trying to make sure I got into heaven. Life is too short to waste it on religion.
And Christians hate people for their beliefs all the time. The only time I address them about their religion is when they use it judge someone, or deny them a right.