Why Can't it leave?

It’s taken over my mind, dictates how I feel
Everything that I do
Is something that’s not real

It’s taken over my head, and makes me bleed
Every scratch that I make
What’s the big need?

It’s taken over my emotion, makes me happy or sad
Every time I speak
I always say something bad

It’s taken over my heart, and now I still love
And the love causes hurt,
So much for the dove.

How did it get in me, and when will it go?
As staying inside me
Is keeping me low.