I think the best thing to do, is just say you are going to give it up. Tell yourself that several times a day, and sooner or later you won't do it. But the urges, may still be around. It takes time to ignore the urges, and it will be hard but in the end it willl be worth it. Trust me. It will and is a hard road to take, one that I wish none of us have to take but in the end you will become stronger to beable to deal with other things that come up.

Best of luck.