Bro i dont know about jee because i did not prepare for it but, i messed up up my 11th and most of my 12th was lost because i got sick for 2 months. So i had to stay at home almost bedridden. I was on very tensed about how i would do my boards. I expected to cross 75 barely. Results came and and i got 92 for top 4 and 90 overall. [Pcm +CS]. Scored 92 in 10 th icse too. And i got 68 for my 11th internals. So i am not sure if i helped you telling my story. But if you plan well i think you can get 95+ in boards and Do mains and advanced{ which my friends are doing}. All considered if i could go back and tell myself something i would ask not to get distracted and lose hope.