If I am in a good game and I am cleaning up but getting tired, I will sit out and walk away from the screen and have a cup of coffee. After 25 minutes or so I will get back in the game but if I am still tired I will stand up and my session will be over. A lot of people try to play 8 hours or some other time limit but if they are winning they will stay longer. If I am winning and tired but all the bad players have left the table I will leave too. My odds of winning a lot has gone down and there will be the chance I will have a bad loss. Some people are down a little and stay too long trying to break even. I would rather take a small loss and leave. You can make it up in the next session. If I am up 25 times the minimum bet I will usually leave if I go down under 20 times the minimum. If I have broken even but am struggling, I will quit. There is nothing wrong with breaking even. It’s the next best thing to winning.