When people gamble too much but don’t win, I assume that they are just contributing money and one day they’ll just win it back.
Not sure where you got this idea mate, but I don't think it's safe to assume that what you lost in gambling, you can simply win it back, if this is what you are trying to say. Of course, there could be cases that people won, but majority like me, playing all year, will be in the negative by this time unless we win big like a jackpot or a lotto or something.
My advice is that when you’re playing these games and you’re losing, you may want to take some time off. If you later come back and the losses continue, then stop and try to play a different type of game. Don’t let the one step closer advice make you go broke. You may be lucky and it happens like that for you, but it’s also possible you’re just giving away your money for nothing but some believe.
Yes, take some time off, like breaking the curse if you are in a losing streak. And even if you are winning form, you don't know that in a blink of an eye, you are going to lose all the money that you have win and then the worst is that it could include your initial capital. If this happens, gonna be hard mentally as you have already the money in your hand and yet you continue because you think that you can double it up again.