You have an awfully limited view of God.
If the universe is eternal then there was never a time when there wasn't a universe - erasing the need to have it be created.
My view of God doesn't include “Last Thursday-ism” - such is a useless speculation - as all reality would conform to there actually being a reality and existence before last Thursday.
And while your view of God may indeed include many preposterous and/or contradictory things - my view of God includes only the one described in the Bible.
The God of the Bible created the universe. The universe did not always exist.