Yes it's totally mind-boggling
sometimes it feels like your brain should explode from contradictions holding true.
The thing about infinity is that counting will instantly destroy infinity and turn it into the finite. The finite nature of ourselves has a lot of trouble comprehending infinity- it keeps wanting to quantify everything.
About the only way to describe the amount would be by saying it's the increase from zero to one, or one back to zero. It hasn't really started and won't end. It just is.
It has happened the most times possible, or happens eternally. Same thing.
In all possibility there is the possibility for no possibilities. Nothing exists inside of everything. It's a contradiction inside a contradiction, a loop within a loop.
A good visual would be two mirrors held up next to each other. The beginning and end are connected.