Where did the universe come from? Atheistic origin science has no answer.

[Tonus]

just exactly what exactly was it you saw in observation that convince you that creation wasn't correct. was it something along the road one day, or on a mountain top; or maybe it some stern aunt that was overly righteous?

That is a bit of a strange request. I would think that most people who abandoned religious belief did so because they found many flaws in the belief system. There may be those who, while studying some branch of science related to the universe, came to the conclusion that it wasn't created, but I suspect they're in the minority. If the belief system that claims a god exists and created everything falls apart, why would I deny the first but continue to believe the second? Especially if there is no evidence to support the first?

I know that the idea that the universe shows "the hallmarks of design" is common among theists as a way of providing 'evidence' for the existence of god. But is that what made you believe that there was a creator? Or had you already been convinced by people who told you there was and simply allowed confirmation bias to lead you to the 'correct' conclusion?