And I know that if I end this I'll no longer have nothing left
If Eminem quits rapping, he will have more time for family and other things. Rapping has taken everything for Eminem, and if he quits he would get it back.
Also this could be looked at as Eminem is leaving Kim. When he leaves he, he will no longer be restricted my the pain and the misery of his relationship with her and he would gain back some what he has lost from being with her.
Other than his daughters, hip hop/rap is his life, and if he walks away from that, he won’t have anything left. His girls are almost adults, so what will he do with his time if he walks away from music?
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