The best way to gamble is when you make a deposit, have fun time, then, either close your device or leave casino or withdraw winning. That is the perfect outcome for every gambler. Asking anything best besides that is like asking which color is the best or which food has best taste. Everyone gamble the way they want and that is their best way to gamble. Making own gambling experience is the most important for every person.
In a nutshell self discipline and knowing when to stop, this is what's going to help you avoid more losses...a lot of gamblers find ur difficult to take a break when Their winning because of how greedy they are...but like you said everyone gambles the way they wants but this doesn't mean that gambling without self-control is a proper way to gamble even though everyone is free to do whatever they want