If you do, rest assured you are not the only one. There are other people that feel the same as you. Teenagers in particular can experience mental health issues such as anger, anxiety, depression and body image issues and over time some may find escape through drugs and alcohol.
Depression is a mood disorder that most people will experience at least one time during their life. A family history of mental health illness will increase the likelihood that a person will experience depression or anxiety. Quite often a person that has depression will also have anxiety. In some cases people may have thoughts of self harm or suicide.