If you are actively trying to cause someone else (especially reoccurring) harm, I have absolutely ZERO sympathy for you if it doesn't work. I hope that karma does get you back if that stuff exists, because you earned it.
Have the courage to own your shit if you insist on trying to do that to someone. Take an ounce of accountability and maybe rethink some of your life decisions. (Probably for about 98% of these situations.)
Yes, we all get mad. That being said, most of us don't try to literally curse someone over it. Reasonable people usually talk it out and problem solve, not try to play god using the abilities that they believe someone else has.