If you want a fun, safe way to feel submissive I can strongly recommend an afternoon spent with duct tape, a boy(or girl) you trust and care about implicitly, and a feather duster.

Take it from me, getting tied down and played with feels amazing. Being forced to cum - by which I mean being pleasured such that you couldn't stop yourself cumming even if you wanted to - feels absolutely amazing. And the afterglow is as good as the orgasm, you just want to curl up against them and purr.

Alternatively you might tie yourself up while your partner makes you pleasure them. Again, it's a fantastic kick. Especially taking a load of cum, knowing you've been a good girl...

And you can obviously mix the two. Maybe they force you to get them off, and if you're a good girl you get to cum.

And lastly you've got the fun, kinky stuff. If you want it to hurt, don't go for anything that can actually injure you. Try a length of vine or rubber, getting whipped hurts like you wouldn't believe. Worse than stabbing yourself in the tit with a fork, for sure.

Don't ever, ever, ever skewer or cut yourself to get off. No orgasm is worth that, and from a friend of mine I can say it really doesn't match the hype. You won't be able to seek medical attention without people finding out what you did, and without it you risk a fatal infection. Mexico's hot climate only it that much more dangerous, as it's the ideal conditions for growing bacteria.