just play online games and avoid looking to some sites when you know that the online game you are playing is hosting some kind of betting. You can limit you bankroll so you can avoid spending too much while still gambling and make it disappear little by little.
That won't work, playing any amount runs the risk of winning and playing more and more. Just turn your internet off, read, meditate, have sex and fill your lives with other hobbies to take your mind off.
Well it takes time, it cant be done easily and its better to start by controlling yourself to lessen your time to gamble. professional help is also a good way to overcome addiction.