How can I stop these worsening night terrors?

They're really getting out of hand. Along with severe disorientation and seeing pictures moving in my room, I'm sensing and even once seen evil(?) beings, fireballs outside my window upon wakening, and last night I could've swore someone was in my room and trying to kill me. THAT made me leap out of bed and bolt across the room. Made me feel rather foolish after I fully awoke. Funny now. But still, this is really starting to get to me. Any advice?