Every gambler has their own strategy but what is important is to spend what you can afford to lose.
With our own strategy, it can give additional fun and even if in the end we will all lose but if we are so entertain, losing our money is not wasting money.
Gamblers think that they have a good strategy created by their own to win every single game they play but I think this is not true because there is not any single gambler present in this world who wins every single game he plays. Every gambler fails to win most of the time because they become pressurized and cant focus on their game. I dont think one will be happy to lose after creating his own strategy in gambling.