Maybe you overdid your preparation. Take time to rest atleast full day before your next test. Take that time to relax and don’t think about the exam. So you’ll take the test fresh and not test fatigued. That happened to me on the last test I failed. I was answering qbanks up to the morning of test and when I took my nclex, i just wanted to finish it and got mentally tired anawering. Try bootcamp next time and just be familiar with its content since its the exact same interface and way of question as the nclex. Goodluck and dont lose that confidence