The goal of this clinical trial is to test a method of preventing substance use among adolescents. Young people aged 11-14 who have depression, anxiety, or attention deficit hyperactivity disorder (ADHD) are at higher than usual risk for starting substances such as alcohol, tobacco products, or drugs. The main question the investigators aim to answer is:
"Will watching short videos in their doctor's office every three months that were made by other adolescents in their community about not using drugs and other substances prevent at risk adolescents from starting to use those substances?"
The investigators will measure the outcome by asking participants to complete a survey every three months. The survey is a standard set of questions about behavior, including substance use. If they have started to use substances, they will get treatment for substance use. If they have not, they will watch another video and come back three months later to repeat the survey.