Base on my experience it is really hard to quit gambling specially when you are already used to it, before my parents will get mad at me becauase I forgot my responsibility as a mom also they sees me almost got broke because of being addicted in gambling. One day I realize to quit gambling and I really want to do it so by the help of my love ones and determination to change I now stop or quit in gambling .
When you are being used to it and somehow what you are doing (in this case, gambling) you are really forming a habit. That habit is like what you are doing almost all the time in a day like brushing your teeth - you don't need to process that, it will be like second nature to you - same is true with gambling.