if you ask me you should go to your garden in your next lucid, and beat the crap out the midget dude or whatever is scaring you. I never have nightmares, and when any dream starts to get scary, or a frightening entity makes an appearance, I for some reason get really brave and just sprint at it ready to woop its ass. Even if I have no weapon. I'm sure you'll get over it sooner or later, but I'm sure others will also tell you to confront whatever is causing your fear.