I have awful Night Terrors?

Ever since I moved into my house with my Dad, when I was 7, I could always remember feeling that there was something not quite right about my room. It always felt like something was watching me from the corner of the room. Recently, I've been having awful night terrors. I've been getting so frightened, and I can't sleep for the rest of the night. I've been even more afraid to sleep. Either i'm going crazy ,or i'm really seeing things. I constantly see the silhouette of a window on my wall, which is impossible, because I always pull the curtains over my window. And whenever I see it, A shadow will suddenly move slightly over the shape. I hear things like my name being called, whispering, Or my cat will hiss at something that isn't there. It's gone so far as I'll sleep in my brother's room. What do you suggest I do to help deal with these kinds of fears? I would like some advice.