I think that some steps may help... you should go away from your pc for a while to think about it. Then you have to stop visiting some websites, the ones where you have learned to gamble or where you have gambled before.
Not only online gambling you should ban your self in gambling casino locally near to you.. also i think it can help friends and family to stay away for gambling just go in far places and take some vacation with your family. it can help you to forget gambling instead enjoy your life with your friends and family,