Indeed, there are many ways to control our gambling habits.
Whether or not you can control yourself comes later, but first you have to decide for what purpose you gamble. If you gamble just for fun then you can control yourself and you don't need to use any other special strategy. But if you gamble for income, no matter what strategy you use, you will be unable to control yourself and keep yourself away from greed. So first of all you need to set your intention then go for gamble
However true, that you always need to refer back for the reason of your gambling. Regardless of how tough you are you will still be tempted and tested. That's why your biggest enemy in gambling is not the casino but yourself. Greed and fear will attack you and will push you to do something irrational that is outside your plan and will derail you to your reason. That's why I think along with a strong reason, you also need a good circle of people to support and remind you "Why you are doin what you are doing."