A Nightmare

In darkness of the night
A driving desire runs through me
A parching thirst that will never be quenched
Just as the dawn peaks through,
Your blood is the one I seek;
you are my prey
And in the daylight hours, consuming my every thought
Your face is in my mind, until I fall asleep at night
Then the cycle begins, all over again...

I had a dream... a dream so horrifying that I can't erase from my thoughts. I've been bothered with a lot of thoughts and now my subconsious mind is making me see things. I had a dream that the enemies will get to me and will turn me into one of them. This is what I fear most. What do I have to do to get this out of my mind?