I prepared for CRNE after 1 year of completion of my nursing course. That gap was due to have my child's birth and maternity.

First thing I did was reviewing the course content of NCLEX RN. Then I prioritized the areas of my weakness, for example cardiovascular nursing and pharmacology. I took more time to review my weak areas of study and I used Saunders NCLEX RN textbook.I purchased Uworld started taking practice NCLEX RN similar test items in timed mode from the beginning itself. It helped me get to manage time while choosing right answers.

Hope it helps.

Good luck.