gambling is very difficult to leave. if we want to really leave the gambling then the most powerful way is "leaving the internet". because now stems from internet gambling.
Leaving the Internet is not a solution, that is just a temporary solution. An addicted gambler will find that it is extremely 'painful' to quit gambling. It is because you do not want to stop. If you have a strong will, it's pretty easy to stop within a few weeks or less. I have a very strong will, and that is why I seldom gamble anymore.
Yes strong will power and following great level of discipline can help you to stay away from gambling or else its very difficult to quit gambling if you are addicted to it.