NTA has changed the JEE Main application and exam process significantly this year. Candidates must go through the modifications before submitting their JEE Main 2022 application form.
Many candidates choose to retake the JEE exam after failing the first time. Dropping out may have a variety of reasons, but the end goal is to pass the JEE exam.
Clearing JEE Main in three months is not impossible. All you have to do is work even harder and stay away from distractions and other unproductive activities.