Apparently this smart genie has some reservations, but I imagine this should be passable.
I want you to be the one who wants something, and I who will do everything to ruin it.
Don't just jump to the quickest life of reasoning: "He doesn't seem to understand/made a concise wish". There is a motivation for what I desired to happen: The original desire, in which I should choose something specifically for myself, is still active, but in such a way that, in order to obtain the final result, that is, to discover, whether or not it will be a failure, you need to want something that I can't ruin.
In other words, for you to ruin my wish, it is necessary that I, now as a genie, cannot ruin yours.
Good luck.
