The worse after effect of gambling is when you are already engage too deep, like what you said more on luck but the sad thing is when you are unlucky you keep trying and hoping that luck will come up and bring you the money that you desire to earned, and again, after you achieved that, your desire to win more will dominates you, greed will start to take over and the outcome may lead you into addictions.
The most important and most difficult issue is that stopping and not gambling often seems very difficult for anyone, even, I think, for the average player. It is not easy for any player to stop playing abruptly, because all the same, this player is constantly and constantly drawn to play and try again and again to win back his loss. But the probability of this is certainly less than the probability of gradually losing more and more. So the moment will surely come when the player will still have to decide - to stop and stop playing or continue to play and get already serious problems in the form of addiction, family budget disruption, scandals with his wife and relatives, and so on.
Unfortunately, this is the path of a very large number of gamblers.