Thank-you for your email. Parenting teens is a challenge. There are many issues faced by teens that can add to their emotional and social well-being. Teens this age may be facing issues with peers, problems at school, or simply lacking self-confidence. It might help to think about when you noticed the start of the sadness or depression. Has this been going on for a few weeks, months, or longer? If you can identify how this started, it can help with ways to change it. Given what you are describing, getting help with counseling would be a good idea.