Decide beforehand how much money you are willing to spend, and assume that you aren’t going to win anything. If you can, bring a set amount of cash with you with the intention that once it’s gone for the day, you will leave the casino.
This helps you to win by reducing your chances of losing more and more money. Also, if you know you have a limited amount of funds, you will be more choosy when deciding which games to play.
If you are going betting for several days in a row, try putting you allotted betting money into a separate envelope for each day – that way you won’t accidentally start using money that’s meant for the end of the week on a Monday.