Lyric discussion by Chake99 

"Take a shot at me that's all I'm obligated for Apparently my only guarantee is a walk away"

It's a song about having nothing guaranteed from life but eventual death. There is implicit irony here as usually people speak of positive things being "guaranteed" and death is hardly considered a positive thing. At the same time the song lyrics suggest that the narrator's life is so miserable that the he know he has a death guaranteed for him is a source of relief.

"These warehouse wages kill the end's introduction"

I interpret as

"These warehouse wages kill the end [of my life]'s introduction"

i.e. even though the narrator is young, he is at the introduction to the end of his life; the stage where he's waiting for death. And in some sense his current living situation (and warehouse salary) have caused him to already have stopped living.

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