obviously NA is about drug addiction, but step 1 states that we're powerless over our addiction, not a particular substance That was helpful to me, the focus on the disease not the substance, and the fact that my disease manifests in other ways beyond alcohol or my drug of choice.
There's also the option of substituting or adding whatever words/concepts work for you in AA when the term alcohol isn't broad enough. Whatever the 12 step program you're working, it's the disease of addiction that we suffer from and the spiritul solution works no matter what name you attach to it. Good luck!