An Unwelcomed Guest

This familiar friend Whom I knew so well Stiring up hate And giving me hell Anger and depression Is anything but key He is the root of all evil And he lives within you and me How can I run away Without looking back Forgiveness is a must It is what some lack When I look in the mirror What do I see Do I see my reflection Or him looking upon me How do I shake his curse And harvest new seeds This seems like a CSI case And I haven't any leads