Remember when they came? Remember your desperation? Remember your blood they drained? Your mental state changed; you had a revelation.*
Stay awake when the night begins. Lock the door and the windows, don't let any light come in. Wait for them to come out crawling. Pretend to be under fear spell, and when they're about to take your soul make them regret the day they escaped from hell.
Once you're done, clean up the mess. Put on suit or that non-pure dress. Try to look perfectly nice and they won't notice the rage inside. Your eyes show insanity, your head turns out twisted. You lost all humanity, so dark and sadistic.