Lest there be any doubt I am not suggesting we are not the result of creation, I believe we are. But there are still many unanswered questions.
Saying a Heavenly Creator created everything is avoiding the question.
It’s simply a matter of Faith. And about questions, truth will be unfolding to the believer throughout eternity.
He always was, He exists outside of time, and outside of this plain of existance. That should be easy enough for you to figure out, since time is only relevant to his creation and everything inside of it. He's the alpha and omega, and can be in both places at the same time.
So, according to Scripture this existence has already come to an end and our new world in the new heaven has already replaced this world and entire universe.
"Then I saw a new heaven and a new earth; the first heaven and the first earth had disappeared now, and there was no longer any sea.
I saw the holy city, and the new Jerusalem, coming down from God out of heaven, as beautiful as a bride all dressed for her husband.
Then I heard a loud voice call from the throne, 'You see this city? Here God lives among men. He will make his home among them; they shall be his people, and he, himself will be their God...There will be no more death, and no more mourning or sadness. The world of the past has gone.'
Then the One sitting on the throne spoke: 'Now I am making the whole of creation new' he said. 'Write this: that what I am saying is sure and will come true.' And then he said, 'It is already done." (Rv.21:4-5).