Gambling is supposed to give fun or entertainment, sometimes we lose control and we lose money, but if we have regretted it and we promise that we mature by learning from our experience, I think we can still enjoy gambling and it's not necessary to remove that in our life.
Remember, nothing bad will happen if we do "responsible gambling".
I guess so. The problem is people do not learn from the mistake and still make the same mistake in the next few days. If you already regret it because of your mistake, maybe you need to leave gambling for a while to reduce the tension or thinking about gambling. That will help you refresh your mind and learn from the mistake so when you come back to the gambling games, you can be wise managing your money and use limitations to enjoy gambling.