Could there be infinite amount of universes?

Absolutely. All of them vibrating at different frequencies. Which one you're living in, is determined by [i]your[/i] vibrational frequency.

Sure. We humans don't understand this one so I wouldn't rule out the option of more than one.

Maybe... if you consider there might be a multiverse

Yes

not that we could ever tell
so not really an issue but for ammusment

There are an infinite number. Parallelism is the principle.

Like Universal Studios?

There likely is.

In 1 universe you lived in Tennessee and were a nuclear physicist in Oak ridge Tennessee ,and in another you were a rocket scientist and engineer from Huntsville Alabama.

One where you praize Alabama... probably