whoever plays that have good emotional control and good decision making can play gambling because if you can deal with this two important part of gambling you will able to maximize your loses and avoid yourself to lose bigger than what you can afford to lose.
I see no. Once a gambler knows the feeling of winning big, they are disregarding the supposedly thing to do once they are losing. Since they already experience to win big, furthermore they will do anything to make it that happen again without noticing that the supposed expected profits are now turning to a losses. That excitement will lead them to do more gambling activity in the future until they can accept the fact.
About the bolded part,I think it should be minimize rather than maximize.