Depression is a mood disorder that can cause constant sadness, despair, loss of interest in what you once enjoyed, and it's common for people who are depressed to resort to drug abuse to deal with it. It's important to discuss treatment options and plan for symptoms.
Sir, I'm very depressed these days, and I've lost interest in things that used to make me happy, and I feel like everyone's against me, and I don't have a purpose in life, and I'm relying on alcohol and drugs to deal with it.