I think people underestimate how much worse they will play when they are in a bad mental state. For example, if you drank, sat down to play with a hangover, just tired or even banally in an anxious state before the session - this is already enough for you to show far from ideal poker at the tables. I think a lot of people don't pay enough attention to this moment, they just sit down to play, completely ignoring how they feel right now and how they play.When trying to complete a marathon, I played too much, wasn't focused, and definitely didn't play as well as I know I can.First, make sure that before you sit down at the tables, you are focused and nothing distracts you. A good mood is very important. If you think that you can quickly recognize the moment of tilt at the tables or understand when you have lost maximum concentration, then this is a delusion. Therefore, I advise you to take breaks.