Lucid Nightmares (Being Rewritten!)

Lucid, a strange but kind person. She's that one friendly neighbor in all neighborhoods, despite her living in a not-so-good neighborhood.
One dreadful day, she finds herself in a white solitary confinement cell-like place. Things go downhill from there, life gets crazy, and she finds out secrets she never knew about until that day.

Warning! There's a lot of gore, cussing, and so much more. I'll list all warnings at the beginning of the chapter.
This is an entire rewrite of a cringy story. Please be patient!
It was originally an SCP x Reader but I no longer wish to write it as that, so it is now a fully fledged platonic story. No relationships besides friendships and parent figure stuff.