How to prep for the NCLEX PN in 3 weeks?!?!?!

[Hellostudentnurssee]

I finally registered and I'm glad I did. I feel more motivated to study much harder :) It's been a month and a half since I graduated and will take my PN NCLEX in 3 weeks. I'm so nervous bc I felt like I didn't retain any knowledge in school. It was kept in my short term memory for a test and forgot the next day. Our school has been using Kaplan and have barely passed the quarterly test. I did the online review sessions and they worked great. I've been on the website practicing questions but get discouraged easily. My weakness is physiological content and confidence. (My confidence is everything and right now I'm trying to be positive and build it up everyday but one wrong question gets me down and gets me doubt, which I shouldn't). I feel like time is running out. Can I do it? How else can I get confident and ace this content?

Thanks :)