You've been pretty lucky these past few days... a clean win of $40 USD is pretty good, with that kind of money you could buy a few things at the mall 
Yes, it's enough to buy snacks at night. Now I have to hold back for a moment and return to the casino feeling refreshed. Sometimes we have to know when to take a break from even the smallest wins and enjoy them. right? It's true that sometimes taking a moment to savor your winnings is the best decision, because if you force yourself to keep pushing your luck, you might end up on a losing streak and lose even more money. Savoring your winnings can be a very good thing since those winning moments may not come back anytime soon.. by savoring them, you can at least enjoy the positive results of your game.