When I was a kid I had only one nightmare various times since I was 5 till I was 9.
Here is the LN (lucid nightmare? Is there any difference between dream and nightmare anyway? )
I wake up and go outside, my parents are working and all that normal day stuff is going on. I remember that I looked at the calendar and the year was 2031 (can’t remember the month and the day tough… small letters and numbers kept changing all the time in dream world). When I came outside the sky got red and a strange symbol appeared (I am going to draw it on paint and post the printscreen here if people ask me. Just for the sake to telling you the details). I called for my parents to go inside, because somehow I knew what was going on. They told me they couldn’t, that they we’re paralyzed. I knew what I had to do as the entrance for a thomb appeared bellow my feet, I had 1 day to go through it and press a button in the end of this thomb to save my parents. I was really scared, because I was only 5, and I remember how it felt and smelled till today, 4 years later after the last time I had this dream. I had it every single night, so when I was 9 I finally finished my task and went through all the maze that was inside this thomb, filled with monsters and this stuff, and I finished it thanks to remembering the way to the end and how to avoid the monsters, if I died I would have a FA and see a meteor shower with everyone dying. It was the same thing over and over almost every single night.
It stopped the same day I succesfully pressed the button (but died from a monster that came from behind). Back then I didnt knew what was lucid dreaming and nor how to control my dream, so it was pretty damn scary.