Hello!

First of all I would like to appreciate you for your determination. Focus on your 10th boards after which you will have couple of months time before the beginning of you class 11. When it comes to JEE preparation 11th syllabus plays a vital role. For mathematics RD Sharma objective (Focus on conics part), For Physics use HC VERMA and for chemistry which is further classified into organic, inorganic and physical chemistry. For organic use SOLOMON'S FRYLE, for physical and inorganic chemistry and Physical chemistry use OP TANDON. For chemistry you can score marks if you have your NCERT textbooks in fingertips. Before JEE take as many mock possible, make sure you are taking up the mock with time management. For practicing mock and to know your position I would suggest you to make use of embibe mock material.

ALL THE BEST. Hope the answer was helpful.

Thank You