The Boggling of the Mind

I don’t understand it at all.  If there is a god, an omnipotent, omnipresent and immortal creature who created this bizarre universe of matter and energy, galaxies, stars and various life forms, then who created that god?  If there is no god, then how did this

I'm pretty sure it didn't happen like this

bizarre universe of matter and energy come to exist?  Can matter suddenly appear out of the void?

And, if the universe is curved space, as Einstein said (I think.  I don’t really even understand Einstein, so Bohr, Heisenberg and Hawking are as far over my head as the stars in the night sky.  I have to go all the way back to the 17th century and Isaac Newton before you get to a physicist who makes any sense to me), and finite (i.e. containing only the matter involved in the original big bang), then what is outside that universe?  Never ending nothingness?  That doesn’t hold water, because if it’s possible for one universe to appear out of the void, and the void stretches on forever, then, sooner or later, other universes have to crop up.

In other words, if it isn’t turtles all the way down, it’s some other damned thing.  So, here’s a thought which I’ve been thinking recently:  if space is infinite, which it is, because even if you go outside the universe, that abstract straight line that was started on a piece of paper is still going, and time is infinite, which it is, because even if the universe ends, it’s just a matter of time before something else happens and besides, time isn’t really a thing, it’s just the unfolding of events, one after another, and if you go all the way back to the beginning of the universe, there was a time before that, even if matter and energy were not existent,  (it may not have been a very exciting time, but it was time), then why can’t we assume that matter and energy are likewise infinite in duration and boundaries?

I know we assume that everything has to have a beginning and an ending, but maybe that is just an anthropomorphic solution, a defense mechanism for our sanity,  to minimize an existence which is too grand and all-encompassing for us to comprehend.  Maybe the universe wasn’t created and didn’t, at some point in time, come into being.  Maybe it is just the natural state of existence, i.e. what is.

I don’t understand it, I can’t wrap my mind around it, so to speak, but I can’t really comprehend the alternatives, either.