Some people don't know where to draw the line, they don't know that there is some financial stage you will be in life where the only thing you should be thinking of is how to make money through stable means and not to use the little you struggle out for gambling. Gambling, which is supposed to be for fund someone who is struggling will be stressed with gambling losses more than it should have affected them.
Gambling responsible is doing your bets when you are in a good mood, not in bad financial situation, and when you are afford to lose your money with bets quite comfortably without pressure of bet to win and improve your finance. Because gambling is basically risky and if you stress yourself with mission of betting to win and enhance your finance, you will increase risk of making worse decisions and actions with your money.
In bad situation, don't bet, walk away, hang out and refresh your mind and do something beyond gambling. It will not help you to improve your finance but can prevent risk of making it worse.