I took the geology GRE in 1984 with a crippling hangover. Did pretty well, mostly because I just wanted to finish and leave, so I wasn’t overthinking my answers.
That’s the way to do it. I took mine on Dec 28, 1975. I was wearing hard contacts and one slipped to the corner of mt eye and I could not get it back in center. You were not allowed to leave the room so I was in misery. Did not do well.