Foggy! What a great word to describe it! Thats how i often feel too..
I spent a few moments trying to find the right word - foggy sums it up fairly well!
Good luck. Remember to breathe!
I've practiced it a few times, so I feel less afraid. Just need to fall asleep at a reasonable time and everything should be ok.
Wonder if you can enquire about special arrangements? Uni where I worked until recently could arrange it for you, without you having to ask individual staff.
I'm not sure how I'd go about doing that - the place is so disorganised and has little agency over the deadlines it sets. Though I will hunt around for options because I'm not sure if I'll ever be able to keep up healthily.