I like to start with the primal star that went supernova, collided with the giant molecular gas cloud and under electrostatics then gravity, coalesced into our solar system.
SO for chemical origins, thank you primal star, giant molecular gas cloud and electrostatics + gravity.
But prior to that? I dunno. And what made it go supernova to end up with us and all like this? Who knows. Lots of who knows.
It’s why I start with the primal supernova. That’s been a measurable thing. 4.6 billion years but beyond that I usually use the word “agnostic” as in I don’t know.
I know I’m not atheist. Never been. Don’t understand atheism.
Agnostic is likely not technically the correct word either. But to confess anything further is a strong ontological commitment and, well, I’m not there yet. I’m glad you are and I will cheer you on from here.