For some ridiculous reason I felt like this poem would be such a great idea for satire. If you could use the same thing about not being able to sleep and other mental health you could change the imagery to that of a circus or maybe a failing circus. Like changing the ending where it says the cat scratched you to “The lion cub stretched me. / The circus maned money-making lion had been dead for years and the lioness had not since had a cub.”
This is really, really random and I apologise for that but I just feel you’ve just stated everything to us and making it almost into a failing circus show could add some originality.
You could even do allegory and start the poem by saying “The clowns don’t sleep at night.” or change the line “My eyes grow heavy and red as the clock ticks on.” to “Clowns with madeup, crazy faces dripping tears like rivers through the white paint like sunset flickering through the polar bear’s fur.”
I just had that “da-dum-da-da-da-dum-da” tempo in my mind. That could even be the rhythm. I swear at this point if you don’t think it’s a good idea tell me and I’ll try write my own version.