If you continue to have concerns after you have taken these steps, you would want to intervene. Try to get support as early possible. When parents feel alone they often feel helpless and at a loss. Possible sources of support are people who are already in your child's life such as teachers, counselors, friends as well as professionals who work with teenagers. If the problem does turn out to be drug-related, it's important for you to know that this is a problem that CAN be dealt with with professional help and the earlier one intervenes, the more effective the intervention will be.
Denial only allows the problem to continue and worsen.
Do not allow your child's anger or frustration to keep you from taking the steps you feel are necessary. The information you and WholeFamily share will not be protected by applicable law governing privileged relationships. If you require advice specific to your situation, you understand that you must consult your own health or mental health care provider.