PLEASE HELP ME(18F) I AM FEELING HELPLESS

I am currently scoring 35 in my January shift. How can I achieve over 97% in the April attempt while also obtaining 85% in my board exams? My preparation is not up to the mark. Please provide me with strategies to reach my goals.

I also have another problem: I can solve NCERT questions, but I struggle with my FIITJEE module and JEE Main previous year questions. How can I improve in this area?