Dream Of Unicorn Turning Scary

This dream sounds really random and super weird, I had this nightmare when I was around 7 or 8. I had recently watched a video for little kids and in the video it said that thinking of your favorite things before bed will most likely lead to a pleasant dream. I really wanted to get a dream because I had only ever had nightmares. So before bed I though of rainbows, unicorns, and ice cream. The unicorn was flying in the sky right next to the rainbow and so was the ice cream. But then the sky turned red. Everything became darker that before, and the unicorn looked scary ( specifically the look on it face) I can’t remember clearly, but I think the unicorn had little splatters of blood on her face (and it wasn’t her blood). The ice cream was melted and the rainbow looked almost completely gray. Soon after I woke up.