Gambling is for those people who know in detail about the risks of gambling and then participate in gambling. For those who don't know how to take risks, it's not gambling, but gambling with a combination of gains and losses. Only those who have the ability to understand this are gamblers. Again, those who participate in gambling just for the pleasure of it, despite knowing the risks, are essentially the real gamblers.
A game where you win once today and lose many times what you won the previous day, and yet you continue accepting that it's all part of the game – those are true gamblers who are out and ready to gamble. If you are not a risk taker, you are thoroughly not ready to start gambling. The best way to gamble is to accept that you have lost the money you stake on a game the moment you click to place a bet.