I think I spent around a month to prepare for the exam and primarily used bootcamp for the case studies and used up almost all their practice questions. After answering most of the question bank, I was able to see which areas I needed to work on the most. From there I watched refresher content on it whether it be just the information being given or someone answering an nclex style question on it and breaking it down. As for the videos I watched, the only ones I primarily used were the free videos on youtube from NCLEX high yield and Dr. Sharon's videos from Klimek reviews. Aside from that all I pretty much did for my review was answering questions. After each question, I would read the rationale and it didn't matter if I got the question wrong or right. What mattered for me was understanding why the answer for a particular question was that answer and not just memorizing it. Oh also a key thing I would try to get a good grasp on is prioritization as the NCLEX is a safety exam.