Dream Of Creepy Preschool And Spider Nightmare

I’d like to start this next dream by saying, one of my biggest fears in this world is spiders. Which I know is so stupid, Especially after the shit that just happened but shush, you don't always remember ur trauma in dreams. Anyways the dream begins back at the house/mansion I was previously in, yet this time it’s like I’d gone back in time, before it was turned into a breakout room. It was the early afternoon, and the sun peered brazenly through the dusty windows of the estate. Janet, from the previous dream, was kindly showing me around the mansion, acting as if, what happened previously never did. She told me the place was primarily used as a Preschool. And let me tell you, this was the creepiest preschool ever. And It was completely empty, besides us. Janet led me to, what she referred to, as the “Arts and crafts' ' room. It was definetly a craft room, so to speak, a really morbid one. The walls were covered with inappropriate, racist, pedophilic and just too strange to describe type things I’d ever seen. Obscene portraits of humans being tortured or burned alive were everywhere. And it was all different mediums of “art”.  All gruesome drawings or sculptures. Some had real pieces of the human body. Like a whole ass rib cage with dried blood on it.  She told me how all the children there had made these pieces, and then led me to the place that hers lay, from when she was a child going there.  So basically what she showed me resembled a pretty basic looking flower. But on top of the flower, still in the glass frame. Was a bunch of webs tracing the lines that she drew. She explained to me that there’s this kind of spider (can’t remember what she called it but it had a different animal’s name) that would trace lines with its webbing when it was scared.  Also I forgot to mention, the drawing had a bunch of rusty nails stabbed through it. I’m guessing that’s how she kept the spider motivated.  She told me to reach into the frame, and grab the drawing out for her, so we could look at it better. Which I did (not sure why) Anyways, I reached my hand in to grab it. Stabbing myself on a bunch of the rusty nails. And as I struggled to move it, The spider jumped out at me and I woke up again. My heart beating erratically in my chest-  SPIDERS ARE SCARY MAN I’m like shitting myself in fear at this point, so I call my dog to lay with me. I can't remember if I slept with the light on at this point or not.