There wasn't a before before creation, and there's only a before/after for the finite perspective.
It's important to bear in mind these distinctions, but, again, I don't think it's going to affect your point yet if ever.
The Book of Job indicates there was a "before" creation. Very clearly, actually.
This whole "time" thing is so sticky, however, that it's best to acknowledge a wide range of views on it, AND a difficulty with its complexities.