Not so stupid, really. You succeeded, but you didn't agree to a life of drudgery. I've always wondered what athletes do, once they've won the Olympics gold medal, or whatever their aspiration was. You reach that "done it" point... and then the thrill of the hunt, game or whatever is gone. Not related, there were a couple of arcade games I played, way back when. I got good enough that I could play the highest level for 15-20 minutes... at which point I walked away and never played that game since.

Maybe things are fun while we are prov-ING a point, but boring once we have prov-ED it.