That will be a never ending emotions, when we gamble we should always think fresh and forget our previous losses, that more we chase are looses the more we lose.
That is why I could say that gambling is one good test for a persons character,how he handle his emotions.If temper/emotions left unchecked you cant focus on your games,but instead going after a win always.Concentration is destroyed,and eventually you are correct,will lead to losses.
yes that is a fact that emotional control can really play important role in winning and loosing in gambling, but naturally humans are greedy and they always wants to increase their money more and more and they never consider their income as enough for their future to lead a standard life.