I'm so sorry you did not pass. I would study and read Leik book several times and take notes to quiz yourself on topics. For each illness, understand how to assess/recognize it, diagnostic exams or...
I wanted to add my tips when studying for the the AANP exam. I just took it in January 2017 and passed first time! I, like many of you, tried to find study tips. I found this website very helpful and...