If your target is JEE main, then you just prepare the NCERT text book top to toe. It's completely enough. Mainly chemistry, if your become perfect at NCERT, you can even score 100/100.

Hi there,

Since you are an average student and you belong to pwd category. In order to crack jee mains you just need 0.0135 percentile almost so you don't need to work that harder. Just focus on main topics and try to memorise the basics of all the things,

And solve some paper you would easily crack it.

I hope this help