I took mine last Thursday and I was freaking out. My test shut off at 75 questions and I had NO CLUE how I was doing because the first question seemed at hard as the 2nd and the 3rd and I didn't know if they were getting harder or if I was still on easy questions. I had no idea. I was so numb and freaked out afterwards but oddly relieved that it was ALL over.
What gave me a load of comfort is that more than 80% of people pass the NCLEX on their first try and the statistics are high for people who's tests shut off at 75 questions. Additionally what gave me the greatest relief was to find out that priority, medication and infection control questions are Tier 3 questions (the harder ones) and at least 50-70% of my test was that, so all along I was testing with the harder questions, so I HAD to of been getting them right.
With the test shutting off at 75 questions, you have to be passing or doing so absolutely horrible (which isn't happening if you're getting infection control/medication/priority/delegation questions) that the test knows that even if it gave you all 265 questions, you'd fail it anyway.
So really the statistics are on YOUR side with that knowledge!
P.S. I found out on Saturday I passed my NCELX.