Need help for jee

Okay so there are only 4 months left jee 1st attempt and I don't stand in a good place and i know the thought of getting into any iit is foolish now but I still want the best that is possible so plz can anyone tell me what chapters should I prioritize the most for all 3 subjects? I am willing to work as hard with the time left but I am so lost. Any tips will be more than appreciated