You are not an alcoholic or an addict. You are not incurably diseased. You have merely become dependent on substances or addictive behavior to cope with underlying conditions that you are now going to heal, at which time your dependency will cease completely and forever.
It's the causes, not the dependent person, that must be corrected. That's why I see the United States' War on Drugs as being fought in an unrealistic manner. This war is focused on fighting drug dealers and the use of drugs here and abroad, when the effort should be primarily aimed at treating and curing that causes that compel people to reach for drugs.
Whether the underlying cause of your dependency is a chemical imbalance, unresolved events from the past, beliefs you hold that are inconsistent with what is true, an inability to cope with current conditions, or a combination of these four causes, know this: not only are all the causes of dependency within you, but all the solutions are within you as well.