Cold Steel:
You state your beliefs, but you don't have anything to support them.
You clearly don't understand 'burden of proof'. Apart from that, it's quite clear that the Snopes site does not say the curse is 'real', but only that people have returned lava to Hawaii because they thought the curse was real.
Since I've never been a JW, I've never been raised to be superstitious,
You think JWs are the only superstitious people???
I had nothing to lose by tossing the stuff I'd picked up in Hawaii. Not my Hawaiian shirt, mind you, but just the little trinkets people had given me.
Before, you said you gave away all your Hawaiian stuff:
I began to rid myself of everything I’d gotten in Hawaii. I gave away shirts and souvenirs
But now, the story is that you tossed out the 'trinkets' and kept the shirt.
And it seems to have worked out for the best.
This is called a coincidence. Though it is also possible that in some situations, your own superstition may influence events (irrespective of whether your superstition at the time of the unfortunate events was about 'magical lava' or just a 'run of bad luck'). This is for the same reason that people think they see or hear 'scary' things when they're already scared.