Double diagnosis therapy is actually available in NJ for those dealing with both addiction and mental health problems
https://beckettdtqf641.theburnward.com/coming-from-battle-to-sobriety-successful-outpatient-therapy-alternatives-for-addiction-in-new-jersey
Dual medical diagnosis therapy is available in NJ for those encountering both addiction as well as mental health concerns, allowing for incorporated care that addresses all components of a person's welfare.