It all started back in the 5th grade. I was a founding member of the Rossville (IN) Elementary Science Club (still going strong 60 years later). We gazed at the night sky. How fascinating it was to see the rings of Saturn and the craters of the moon! We went to Purdue U. to see a Leonardo da Vinci exhibit. I became a life time admirerer. We collected insects. This was what science was about.
Despite my religious parents (at least "church going"), I inwardly rebelled. I never really became an official atheist (or secularist) until my latter college days. But I pondered the possibilities, the contradictions, the logic associated with being a so-called Christian scientist.
Once I became a science teacher, my religious past was history. I've never looked back, reevaluated, or questioned my confirmed belief of a godless universe. It really wasn't that easy to be 'suaded out of what I was brought up to believe (from parents and church). But reason and common sense prevailed.
There, in a nutshell, is a brief summary of my "conversion". We secularists have all been there. No bolts of lightning or sudden vision. Just a slow process of thought evolution. I sometimes forget how much joy I have in my heart knowing FOR SURE there is no god! Oh, what a relief it has been and continues to be!