With regards to getting your bonce around stuff such as infinity then don't worry so much as the universe one day will collapse (apparently done it a few times) so there will be nothing.
Now when I say nothing it's not like an empty box or something, it's literally nothing, no time, no light, nothing. No space, no dust, no gravity, no heat, no energy - nowt, zilch!! Everything you know and have come to terms with will not be here and most likely won't ever again.
A small little sentence changed my perspective on the night sky when out with my dad. "That star is hundreds of thousands o