Either problems can make the other worse and lead to bigger trouble, like addiction or flunking school. You can help yourself, or a family member, or a friend find treatment. Most people who are depressed do not commit suicide. But depression increases the risk for suicide or suicide attempts. It is NOT true that people who talk about suicide do not attempt it.
Depression is more than just being moody.
And it can affect people at any age, including teenagers. Telling an adult that a friend might be depressed is betraying a trust. If someone wants help, he or she will get it. Depression, which saps energy and self-esteem, interferes with a person's ability or wish to get help. It is an act of true friendship to share your concerns with an adult who can help.