Luck is something that do come and go and there are no things on this world which could call out where its impossible.
So lets not put up into our minds that luck is something that can really be affected by something.
We really cannot tell when luck is going to come but if it's there, it will show you that you really are a lucky person. Whether you think that you're lucky based on your emotion, you just can't be sure that you really are lucky because it will depend on the result as you gamble.
There are those that think they're lucky and putting everything that they have but in the end, they're just losing because they've been dependent on their emotion.
You're right, I have a friend who went to a traditional casino years ago, we went out of class at the university and went to play, so he was the only one who worked, coincidentally the day we went, he changed all his salary to chips to gambling, and he played uncontrollably and large amounts, both in roulette, like bingo, poker, the truth is that I do not know how he did not think about the value of money, the worst of all is that he lost absolutely everything in a matter of 2 hours.
Besides that he did not look sad or bad, at least I would have even cried for having lost all that amount of money, what he said was that it was not his lucky day. There are people who abuse the good luck that they have had at some point, and for this reason they end up losing everything in a very short time.