None of your intentions that benefit you alone (playing a video game, satisfying a food craving) come to fruition anymore. Your other intentions that benefit at least one other person cause maximum harm to others as well. You basically just wished yourself an unending variation of "the monkey's paw"
Strangely I've had this shower thought a lot. I've mulled over how I would make my one wish to a genie many times. Which is pretty dumb when I think about it. I could have been reading shampoo bottles!
Same. I think that the best thing one can wish for is a way to learn things you want to learn as fast as you want to learn it, whether that thing be knowledge, or a skill, or a power (supernatural or not), with the immediate option to unlearn that thing, should any ill effects or undesirable outcomes occur.
That way, your potential is essentially infinite, but not ludicrously so such that the world gets boring, and that any changes are not sudden or dramatic.