[17F] How do I improve from 87.2 %ile?

Meri JEE Mains mein 87.2%ile aayi hai. Subject wise it is Physics: 86%ile, Chemistry: 76.5%ile, Maths: 92%ile How can I improve from this? I want ki April session hi kar loon aache se taaki respectable college mil jaye Also god forbid, should I consider drop year agar cheeze improve na ho april session mein? Pls koi bata do, thx. >!(also mein male hoon, previous post ignore ho gyi thi to clickbait krne ki koshish kr rha hoon. sorry lol but pls help kr do.)!<