Emotion cause you being careless and most of the the it also create frustration and aggressiveness, once you already been dominated by your emotions then you won't be able to think clearly, even you begin with strategy and good anticipation everything will fall a part when emotion start to dominate, it manipulate everything.
You need to make sure that you have the courage to make that decision to stop your session if you feel that you are already being emotional it prevents you from making more mistake and lose your money.
that's right, unclear thinking will be experienced when they gamble with full emotion, also with this emotion will make them spontaneously do actions that are not considered first because of impatience that cannot be held back well even doing risky actions is a choice that sometimes becomes a definite choice when emotions have taken control of yourself. the obvious risk that will definitely happen can be ignored when emotions are in yourself this is what causes many cases of major losses in gambling. it is difficult when gambling is out of control, but this will not happen for those who do have a good mindset and boundaries in gambling, for those who are wise in gambling it seems not a difficult problem when experiencing disappointing events, they will still think clearly because they can control themselves well but gamblers like this are fewer than gamblers who often lose control of themselves.