When will it stop? The thing..that is Depression

A girl who thought it wouldn't hit her at all. That pit of Darkness and Sadness. Was it phase? Will it go? What will happen to that girl. She tells a story about another girl who both share the same life perspectives and leaves you dumb founded of what her thoughts and actions has made her do in her up coming life. Her one question leaves her thinking in the hollow room, of emptiness and sorrow... You can be a cure of Depression.. so why is there millions of people trying to suicide? When it only takes one person to save a life?