If you are a gambler that follows the rules you would not end up losing a lot of money like those that are Indisciplined...The last rule is the most important because that's the main reason why a lot of gamblers lose in the long run...if you are the type of gambler that can't accept losses then you'd end up chasing... Trying to win back what you have lost by gambling more is a dumb move but when we get too desperate we forget how risky it is
The problem is that, we can't totally eradicate losing from gambling, as long as you gamble you lose and win so for that as you follow your rules also prepare yourself to face the realities that comes along with gambling.
Having your set rules helps reduce the impact of the losses or management of winning at times, so proper financial management is key to staying safe in gambling.