There's a popular remark among gamblers in the part of my country I reside. The saying is expressed like this "if you quit that's when you lose". They use this statement to encourage and give futuristic hope to themselves that no matter how much they loss today or how many wagers they have lost they don't need to quit as it's possible you may be the next jackpot winner tomorrow. For it's like say don't quit yet there may be a light at the end of the tunnel.
I'm 100% sure that it comes from casino operators, not from gamblers casino operators are good at promoting and encouraging gamblers to continue playing they want you to chase your losses to the point that you do not have any more money to chase your losses, this saying applies to goals that you can reach if you work hard like education or business but never in gambling.
Never let gambling operators dictate you or else you will find yourself losing more than what you can afford to lose, check out offline casinos they have everything you need like food, drinks entertainment so you can continue your stay and play your playing time is their investment so they are good at making you stay.