There should be no much lessons to attend in order to be able to learn how to be a responsible gamblers other than making sure to use funds that we can afford to lose to gamble and not also entertaining the idea of getting rich through gambling. I think these are the simple factors that determines responsible gambling, because if you don't lose more than you can afford to then you wouldn't be having a need to chase losses, and if you're not among those that takes gambling as a means of getting rich then there's nothing you have to do with impulsive gambling at all cost.
That should be the basic motto in gambling. Gamble when you have extra. And not because you want to find extra funds. Because most gamblers have the mindset that gambling can either give him the jackpot or will give him the huge profit that he's aiming for. However, we all know the end result of most of our games.
For me, playing is a way to relax, and I enjoy the process itself. The most important thing is to set clear boundaries for yourself both in terms of time and the amount of money spent on the game, and then everything stays under control. Gambling only brings problems into our lives when we lack discipline and a proper system in managing our affairs and expenses.