chat am i cooked

I have a PSYU1101 exam tomorrow at 9:30. I live on the central coast which means I gotta get up at 6am to get ready and train there. Ive done every lecture module and wrote down 20+ pages of notes but Im struggling to retain any of it. Ive also been rostered for work EVERY SINGLE DAY since finding out the exam date. I dont finish work til 8pm then I gotta go to bed. Pls does anyone have any tips for not drowning in sleepiness and any exam advice its my first uni exam ever and Im so sick of reading abt pavlov and his salivating dogs