I need help!!

Guys help me out, I'm 18M, completed my 12th in 2024 and took a drop year to prepare for jee, but my first attempt wasn't so good, I wrote my first attempt on 28th Jan Shift-1 2025, my percentile was 79. I want to secure atleast above 96 percentile in my second attempt, I have nearly like 15 days left, pls let me know if you have any strategy or tops and tricks......