You do not have to play every single game that you see. If your funds are not enough to gamble, then you should not risk it at all. Even if your funds are "enough" to gamble, if you do not have more than enough then you should avoid it. I usually gamble with 20-30 cents per bet in the places I gamble, rarely ever do 1 dollar per bet but if I have to then I do it, but never more.
I do not care if there is a huge better amazing game out there, if it requires me to gamble more than I am comfortable with then I do not gamble it. You should focus on that, the game could be great and you might get a lot more fun with it but in the end if you end up with absolutely nothing then there is nothing wrong with avoiding it.
It really is very wise advice, I don't usually bet a lot of money either, and more so when they are slots, in fact I see slots as a way to de-stress, when I think about trying to make some money and at the same time have fun and maybe risk a little more , I think it is in Poker, but for me, even though I have read a lot about slots and their different techniques, I think that as you play more and bet more, the risk of losing everything, self-control and responsibility is very high. must always prevail.