Isn't there something you can do like taking sick days to recuperate? How did it go with the plan of gathering your thoughts and reflect, I remember you were mentioning that before. I know how the co-workers that you described could be as annoying as ****, that doesn't mean you shouldn't be able to handle the situation like nothing at all. Who do you have in IRL? You could maybe let some introcept, while you keep doing the introspection, so you won't let yourself blow up.

You sound like you're sailing on a rough sea right now, all hands on deck! Plain water or a spiced rum, that'll be your choice, at the end of the day, you're the captain of the ship, please remember to send out a distress signal when you feel like your life is in a tumble dryer. Don't give up on your sanity.

Edited to add: Ali didn't die for nothing. He could be watching over you right now. It's not your job to throw in the towel, that's what a cornerman's for. Granted, it is your fight, the round continues till someone rings the bell announcing that you fell. Now's not the time yet. Be the champion in your own ring.