I'm scared for my nclex !!

Hello everyone ...my name name is Jasmeet I'm studying for my nclex but I'm very scared. I took nclex pn a year ago but I didn't pass. Now I'm very scared to take it again please someone help me how should I study I'm not able to manage my time. I dont want to fail this time. Also I submitted my application for retaking nclex pn it says "open" when I checked the status. How long does it take for the application to get process I want to take nclex in 3 months someone please help me I'm.veru confused I don't know where to start . Also currently I'm in India and im planning to take my test here I will be back to the USA next year but before I go back I want to give my test here. I have already submitted my application as I mentioned before what is the next step should I register with Pearson Vue or should I wait for my application to get accepted by the board. Plz help