Problems with gambling is they are difficult to control myself to stop playing, many gamblers who do not want to gamble, but in the end they play back. This may result in the absence of other activities to do so triggers the return of gambling.
The best way to stop your gambling activity is by participating in outdoor activities. Try to spend most of your free time with either with family or with friends who don't talk or play gambling than slowly you will surely stop gambling soon or later. If you always sit in front of a computer, then it will be difficult for you to come out from gambling habit.
It is actually more about controlling your habit rather than doing some other thing to let yourself forget about it. It is actually easy to access a gambling site, everyone could access it from their phone and it doesnt prevent anyone from gambling even if you are doing some outdoor exercise, if you cant hold your guts to gamble then nothing could prevent it
Once you addict to these games, it is not easy to control yourself unless you stop accessing them until you forget it for some time. That's why it is very important for addicted people to keep them busy in some other activities to stop thinking about gambling. I know it is easy to access these games nowadays but once you keep yourself busy with other interesting things then it can be easily controllable.