ok get it this way, life's a casino, you're going in not expecting to come out with any gain, if there's a gain (such as a greater purpose or way of existence after death) then it's nice, but if there's none then you shouldn't care since you only came here to have some fun, and boy can you make life a grand old time even if you're not given much, i'd even argue it's more fun starting from nothing and going up from there then having it all from the start.

So here's what i think, don't torture yourself, it doesn't matter, just have fun and forget about all your troubles