Is My Living in Vain

Trouble in mind, I'm blue
 But I won't be blue always,
 'Cause that sun is gonna shine in my back door someday
 Trouble in mind, I'm blue
 But I won't be blue always,
 'Cause that sun is gonna shine in my back door someday
 Trouble in mind, that's true
 I have almost lost my mind
 Life ain't worth living, I feel like I could die
 Trouble in mind, I'm blue
 My poor heart is healing slow
 I've never had such trouble in my whole life before
 Trouble in mind, I'm blue,
 But I won't be blue always
 'Cause that sun is gonna shine in my back door someday