Gambling is like trading and investment, I recommend people to withdraw initial capital before continue to do their investment, trading or gambling.
If they can use this strategy, they will be able to keep their initial capital safely. It is clear that this strategy only works if they already get profit, and it gives them opportunity to withdrawal and save their initial capital.
It's very popular to see investors, traders, gamblers who win big but does not have good strategy, and later they lose big.
This is easier said than done. Most gamblers lack proper self-control due to which they end up gambling away their funds in the long-term despite being aware of all the stuff that you mentioned.
The ones who possess great willpower are few and far in between and they minimise their losses/win against the house in the long-term.