Many people who are addicted to drugs are also diagnosed with other mental disorders, including anxiety and depression. Some people develop mental health problems related to their compulsive drug use, and some people take drugs in an attempt to alleviate symptoms of mental health disorders. Whatever symptoms appear first, it is important to treat all mental illnesses at the same time.source
Comorbidity: Substance Use Disorders and Other Mental Illnesses
Common Comorbidities with Substance Use Disorders
Adolescent Marijuana Use Is Linked to Altered Neural Circuitry and Mood Symptoms
Study highlights unmet treatment needs among adults with mental health and substance use disorders
Mental Health and Addiction Insurance Help
Above the Influence
Our goal is to help teens stand up to negative pressures, or influences. The more aware you are of the influences around you, the better prepared you will be to face them, including the pressure to use drugs and alcohol.source
MentalHealth.gov: one-stop access to U.S. government mental health and mental health problems information.
https://www.mentalhealth.gov/get-help/immediate-help