Cosmology insanity

What gives the Universe all the room to have enormous (or infinite)
space? It had to come from somewhere! What is the origin of
all the matter/energy in the universe? It had to come from
somewhere! If the universe has infinite size, does it also
have infinite energy? What created that?

Good grief, I know these are fundamental problems of cosmology but
it still drives me absolutely insane. I have a few cosmology books
here in the house, but they seem to tiptoe around a lot of these
issues and delve into other stuff, such as redshift and different
rehashes of what happened in the first second of the Big Bang.
I guess it wouldn't be proper for these books to speculate,
which is understandable, but I'd at least like to read an
inkling of speculation.

The idea of ANYTHING growing out of an absolute vacuum, no
matter what the circumstances are, is so counterintuitive it
is insane. The Universe shouldn't even exist! Aghh!!
More fodder to contemplate during my next observing night.

PTM