What strategies can a person practice to prevent the use of harmful substances? avoid activities with others. confide in a proven trusted adult. use social media to get peer advice. seek friendships only with older people.

Confide in a proven trusted adult.

Explanation:

Many young people end up using harmful substances to deal with personal problems or to make amides. For this reason, relying on proven trusted adult would be the best option to prevent the use of harmful substances. This is because this adult, based on his experience, would be able to advise these young people and show them healthy ways to deal with their problems, and show how these substances will not lead the young person anywhere and will only create more problems.