Conjecture and speculation, on your part.

> 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?

i've experienced it, and so can you. don't take my word for it. invest serious time in meditation and if you want a shortcut, drink ayahuasca or consume 5meo-dmt. it is just as scary to realise that your ultimate identity is God (with all the responsibility that entails - full responsibility for your own life and your environment etc), that you are fundamentally alone (we are all the same consciousness experiencing itself from different perspectives) and eternal with no respite of death. you are kidding yourself if you think your life is an accident. you are alive because you desired to be. it is your deepest desires that drive your incarnation into each life.

Conveniently unprovable.