What really makes a gambler lose? Is it greed? Well it is the illusion of control. Illusion of control leads to continued gambling and the more a gambler plays the more the casinos win, right? As a gambler, you should be able to identify these illusions so you can at least get a hold of yourself.
We often think, deep down, that we can control how we win. No matter how many proof we are presented with that the casino always wins we always think that we can overthrow this theory that applies to everyone. Then it gets justified when we actually win so we will continue playing thinking we can actually decide when to win.
If you get statistical and logical, you will remove these thoughts and you will not become overconfident or superstitious.
I don't believe it is overconfidence or superstition that causes people to lose money. I believe it is an addiction to the idea that they could hit a life changing jackpot. I don't even believe that the gamblers themselves think they're going to hit a jackpot. It's just the idea that carriers them. As long as they can afford it and aren't delusional, I don't see any problem with it. Sometimes all people need to be happy is a dream, even if they themselves know it will never happen.