I think yes, nobody wins in gambling.If they do win at some point but again they loses anyhow.I always see many one becoming poor for gambling and that realized me that nobody can wins in gambling.Its not any fact that you are so skilled at gambling because at some point you'll become empty hand anyhow.
In my opinion, you can win in gambling when you have what it takes and that is the cool mind and the strategic approach to the strategies of the opposite player. There are many ways to do that and for example in a blackjack or cards, you need to be strategic enough to trick the opponent with the strategies in a way that is not known to him. Facial expression of the opponent might give you an insight to the nature of your strategy and his knowledge about your tricks.