You should just do not get to much involved in money making process form gambling which can effect your mental and money state affair as then you lose control on yourself and want to just make money from it. Else if you play and win sometimes you should feel good about it.
Gambling first of all is not a money making process for the player. Thats the greed making people think it is while it is actually not. Mathematically every person can get lucky and win big but that is possible.
But what is not possible is that emotional control to stop gambling once you win something. The games end up in such a manner that every gambler would think that they are are going to win the next bet after seeing small wins in relation to big losses. While that may just happen for many, others will lose. This is what people fail to realize. In fact that us why running a casino is a profitable business provided you do your part properly.