Also, this rule of thumb only works when two pair returns even money. Neither game is for the faint of heart or the person on a short bankroll. Whether or not you get four aces in the next hour is so is largely luck. If you do, you'll win today. If you don't, you won't.
Good players know that they have a few winning sessions and many losing ones.
Their only choice is how they can react to them. If losing really drives you up the wall, pick a different game. That's it for this week. Until next time, go out and hit a royal flush.