You're Agnostic by the sounds of it. We're pattern seeking creatures, so we feel a need to understand everything, even if we can't actually do that. Attributing fantastic events to fantastic causes is totally normal. And what's more fantastical then a blank slate of undefined energy assembling itself into an unfathomably complex system on it's own over billions of year with no external influence? You might have heard the old Creationist example of a tornado tearing through a junk yard and assembling an F1 Fighter Jet. That's a crude, simplistic process compared to the formation of the universe.
The assertion that it's impossible without an intelligent mind guiding it is just small, egotistical, very human minds trying to make sense of the world, like we've always had to survive. Now we're just comfortable enough to look for new unknowns to stamp out. And we're stamping on the real answers for false assurance.