“Sweating the small stuff is OK, but exercise your complaints lightheartedly. Seek out humor in your whining. Be humble. Be self-aware. If you allow yourself to sweat the small stuff—and I think you should—then you also must force yourself to be detail oriented. If you allow yourself to sweat the small stuff, then you must try your hardest not to sweat the big stuff. That’s the deal we are making in this chapter. I will declare that it is acceptable to complain every once in a while, and you will agree to do it only with the small stuff and not the big stuff. I am giving this advice because venting is extremely healthy. And it is also good practice for self-awareness. Venting about the little things provides you with perspective on how silly and unproductive complaining really is. At the same time, we should recognize that pent-up frustration can have real consequences and be detrimental to our mental health. I firmly believe that allowing yourself the space to complain every once in a while about the little things frees up mental bandwidth to deal with more consequential life events. It is a frustration-release valve.”