Chances are, you won't. The only guaranteed way to avoid addiction is not to start in the first place. But if you can't or won't do that, then at least try to limit yourself to only using once or twice a week. These alkaloids will build up in your system and stay there for 24 to 48 hours, so using every other day is going to get you into trouble real fast. If you have been using for awhile, try to taper off gradually to reduce the amount of alkaloids in your bloodstream, this will also lessen the withdrawal symptoms somewhat. It takes a strong willed person to be able to resist the temptations of Mother Opium, but if you don't, she will teach you a harsh lesson, one that you won't soon forget. She will have a pound of your flesh, and many more of your sanity. Can you say "Weekend Warrior"?