As you are expecting to make big money from a casino do not forget that if your father is the one that owns the casino, are you going to pray for him to go bankrupt? Perhaps due to the huge profits many of the users of his casino are making with the small stake they put to win huge money. A business is made to get revenue as more users are using your products, this is why we should not always expect to be making profits from all your bets, at least you need to make money so the casino can smile for they have been able to make from you.
This is from the angle I used to view these things sometimes, if you expect to make big money from a casino do not forget that the casino itself is a business because just imagine if your father owned the casino, would you really pray for it to go bankrupt because users are winning huge amounts from little stakes they are placing.
I have this general understanding that businesses exist to generate revenue especially when many people are using it's services and in this case even the user's are there to make their own profits not necessarily caring about the business's financial gains or losses and that's why it is going to be very unrealistic to expect to profit from every bet you place.