in my honest opinion , YEs we need to have a strong character for that example we need to take a decision to leave gambling after we loss its a part of discipline.
If we are going to gamble make sure that we know or we have set a limits to ourselves before going to play. And of course the amount of money that we will going to spend . Even we are winning streak we should take responsibility and follow our disciplinary actions.
I think all gambling players understand this and definitely set their limits
but sometimes what we plan doesn't run smoothly
curiosity when losing and greed when winning makes most gambling players forget the rules that they make
this is very difficult for most gambling players to control.
Right mate, if a gambler want his money to remain in safe hands they will have to limit their money and not to spend over your limit. Its important to take your hand back after that specific amount it will help you allot of control your emotions and to be really disciplined person. Those who leave hope and lose money is not good also those who become greedy and spend all at once is not good at all.