I can't imagine. See if you can use that love for your son to double up on the your remaining loved ones around you. Honestly, if this happened to me and I DIDN'T have any remaining loved ones to look after, I would probably do something drastic like be a recluse monk err something. I will say too though that I would not even think of being mad at God. I've always viewed life as being unfair. It's like my first rule of life. There is nothing at all "fair" about life, and neither would I ever want life to be. "fairness" would take away all beauty. If we were all genetic clones living the exact same life than it would no longer be worth living. And, as far as tragedy goes, it is abundantly clear that God allows any atrocity at all to occur. It is my faith that our souls/afterlife is where the fairness exists, and that these physical lives ultimately do not matter.

Random thought, (and I've never done this, just watched a lot of youtubes about it), but I would probably seek out a DMT trip which has been called "the spirit molecule". Many people come out of these no longer fearing death and being supremely confident in the afterlife.