It’s quite sad as your friend has created a theory that keeps him motivated enough to continue gambling even if he continuously looses. I doubt he hardly thinks of his losses as he probably has his eyes set on the big win. The big win that’s just around the corner.
An average gambler cannot afford to play daily with unrealistic hopes of winning it soon. He could lose literally everything and if he takes such an advice. Addiction would not far off as well. Your friend needs help and definitely need to take some time off gambling.
He surely think of his losses but the matter here is that he's finding a reason for him to explain to him that it's fine to gamble everyday.
There are many reasons when someone tells a thing and trying to prove their argument that they're right.
Well, to each their own and it's surely not a good thing to gamble everyday just for you to consider the chance of winning.