(As a long-time writer, I had this opinion after reading this.)

Well, this story turned out to be just a bit anticlimactic. The non-reactionary point-of-view character was absolutely impossible to identify with or get invested in because they reacted quite mildly to everything that was going on around them. I don't know about you, but if I were for some reason lost in the woods and discovered an isolated, deserted carnival and got tickets sold to me by a gigantic talking rat, I would freak the heck out, and get out of there as soon as possible. I think that's what most human beings would do. They would be a lot more bothered by the circumstances raising red flags literally everywhere, than accept the ticket and step into the suspicious circus tent. This character would have to be pretty daft, or rather, not very mindful to not think that anything wrong was going on at all. I found myself somewhat confused as I read over this, when I feel, that this was meant to be more suspenseful, or horror-driven. It was just hard to believe how the main character was reacting to all of these supernatural and creepy events. With nearly zero emotion at all, no revulsion, no stress, no anxiety. "They" weren't feeling anything strong and as such I feel this would make the audience unable to really place themselves in this story, and feel what the main character is feeling. It was more comedic if anything, just how unbelievable "they" were acting in this situation kind-of took me out of the story. The next time you write something horror-based, try to consider the fact that a lot of the events going on would unnerve, stress out, or shock the characters. Try and write all of what they're experiencing and feeling in order to get the audience invested, or else, the writing becomes bland, and unsuspenseful.

Grammar-wise, there was a recurring subject-pronoun disagreement with the singular main character constantly being referred to as "they". I am aware that sometimes some people prefer to be referred to as "they" if they identify as "nonbinary" or something of the sort. If that's the case here at least made it clear because something as basic as the gender of the main character wasn't made clear throughout the entire piece, and, using "they" as a pronoun for a single person is just grammatically incorrect. Use "he" or "she" and use "they" for groups of people, if it can apply.

Something you did do well, was that the writing wasn't atrocious spelling/grammar wise outside of the subject-pronoun disagreement. Hopefully this could provide some help!