Don't do gamble emotionally because emotion is the main enemy when you gambling. Emotion force you to do over gamble when you are in loss that decision is totally wrong. Expats and maximum gambler do that when they faces losses for that time they stop doing gambling. That's the best way to not faces extra more losses. If your emotion highly work then stop gambling for this time and do relax and play again after some time in cold mind.
You are right. When one gambler will go for gambling in most cases he will face issues with the emotions. But if the gambler cannot tackle it then it is natural that he will face loss Or his losses will increase. If you gamble with emotions, you will make wrong decisions to win again and again, and in the end it will be seen that the amount of loss is much higher. So I think always should avoid emotion in these cases and go into a strategy.