If you want to gamble, try to play within your means. Set aside a budget and time for gambling and do not exceed it.
A winner is one who, after collecting his winnings, knows when to stop. Unfortunately a lot of people dont know how to stop.
Know the odds and dividends and rules of the game you are playing. It can help you make an informed choice.
If you havent started on gambling, I recommend you dont. Unless you have excellent self control.
Thats it, and good luck!