Tired of the same ol' same ol'

I am so tired. I feel like I work and work and work and I am not seeing any profit from it. Working in this dead end job is tearing me apart inside. I feel emotionally drained when I get home. I have been planning on looking for a new job for probably 6 months, but I get home and I am so tired, physically and emotionally, that I don't want to do anything but sit on the couch. I think I have a bit of depression going on here, but I don't know what to do with it.