Every day we have to face a lot of different situations that leave their mark on us, including not always positive.
Sitting down at the poker table, leave all the experiences of the day out of your field of vision. It would be a big mistake to try to take revenge on a rude boss by aggressively drawing a mediocre hand. Although this situation is stupid, it is quite common. Often people vent their emotions in roundabout ways.
There are several ways to tune in to the game. Someone comes to watch a small video of a good poker player's game, someone needs to take a walk or just get distracted, someone needs to sit in silence for a few minutes to relax and calm down.
Personally, I review my database before the game. I choose the biggest losses, scroll through them in my head again so as not to repeat them at least in the near future, i.e. the next game session.
I also very clearly adjust the background sound of the computer before the game. It's not loud music at a medium tempo that suits me. The main criterion is the correct volume. I should only hear the signal of the room about the action and my inner voice.