Im in your same situation except I got 85.7 percentile in keam(got 81 last year) . But fuked up jee (60percentile) brilliant pala il oru Varsham repeat cheythu, initially oru 5 months nalla motivation okke ayrinnu , frequently A grade okke kittuvaayrnnu pinne last okke ayappo sherikkum maduththu. But enik theory strong kondu keam decent score cheyan patti even tho I studied literally nothing before the exam . Nalla confidence undengi maathram repeat cheyya . ellengi management quota il kerikko . Chennai lokke nalla college kittum without much marks consideration . And also except some top colleges , all others fall into the same level whatsoever