> if consciousness was created by physical processes, what created the first consciousness?
Perhaps a different physical process, since we can see that a physical process is capable of creating consciousness. It seems very plausible that consciousness is simply an emergent property of complex, multi-cellular life. If so, then a better question isn't what created the first consciousness, but what created life? But that's a whole different can of worms. I'm afraid we may not be very special at all, just clusters of animated molecules that last a short while before entropy catches up to us and we revert to dust. But I understand why this scares some and they seek comfort in other explanations.
> supreme intelligence and consciousness that is behind everything
Evidence?
Somewhere between mortal injury and decomposition, consciousness vanishes. Live humans, yet to succumb to a mortal wound, are clearly still conscious, yet a decomposed corpse is clearly not. So somewhere in between, consciousness ceases to be. We don't know yet exactly when, but I'd while say we've got it pretty narrowed down, the exact point currently a topic of debate in relation to organ donation.
This is all to say nothing of the how of consciousness, or what happens in between, but it's pretty clear there is a beginning and an end to it.
These are pretty basic observations that anyone can make. As for any presence of "consciousness" before or after these points, well, what evidence is there? None I've ever seen, just conjecture and speculation presented as fact.