Weird dream

So last week, while I was waiting for my teacher to connect to the online class, I blinked and fell asleep ( ik how it sounds, but I literally blinked and boom). I had this dream where I was in a black empty room with some other people including my mom. A few minutes later, the queen of England appeared in the dream and started talking to me. In the moment she spoke, everyone disappeared and I was left alone with her. We started to talk about me for a long time and at some point she decided to adopt me ( she didn't tell me this I felt it and by the time I had this feeling, I was already hers). Then we were at a dinner table with many important people (presidents, royalty etc.), we were still talking about me when all of a sudden, her husband shoot her. I tried to stop the bleeding with my hands and all went black. 2 seconds later I opened my eyes, still in the dream, me and the queen fused and I became the new queen (I am a boy), but I wasn't human anymore. I was a creature much taller then the humans (around 3 meters) with a crown and big horns on my head, my fingers were long and sharp like blades and on my back I had 2 "tentacles" like the tail os a scorpion. All I saw was my shadow, but I felt like they were made of bones, flesh and had a sting of steel. I remember killing the queen's husband, then staring at my shadow. When I woke up, the class was over and the new one was already started. Does that dream mean something or is it just my brain?