Hello

You don't need to worry ,even if you are in class 12th right now and going to appear for jee next year, you can still cover complete syllabus and prepare , many students do start their preparation in class 12 for jee examination like you and not only prepare but get selected into good engineering College as well you can do the same, all you need to do is be honest and dedicated towards your studies .

Follow the below tips to prepare well for your JEE -

*Go through  the syllabus of JEE first , your major focus should be on clearing concepts while going through the syllabus as good command over concepts is required to solve questions in JEE

Some of the top books which you can follow for the preparation of your JEE  examination and master JEE syllabus  is provided below:-

PHYSICS

*Concepts of physics Vol I and II by HC Verma

*Problems in General Physics by I.E Irodov

*Objective questions on physics by DC Pandey

Mathematics :

*Maths XI and XII by RD Sharma

*Complete mathematics by TMH

*New pattern mathematics for JEE by Arihant publications

CHEMISTRY :-

*Ncert Chemistry for class XI and XII

*Physical Chemistry by OP Tondon

*Numerical Chemistry by P Bahadur

*Organic chemistry by OP Tondon

*Practice questions:- after finishing each chapter you should practice numericals and mcqs

*You should practise at least 80 to100 numericals and mcqs in Each chapter to master concepts so that you can solve numericals and MCQs easily

* You should make chapterwise short notes for each chapter and it should contain all the important concepts and formulas

*Revise your concepts, important formulas etc at regular intervals, like once in a week or 15 days .

*Make routine or timetable :- you can make a routine as well and try to give at least 8 hours or more to study.

*Solve previous year JEE  questions :-it will let you know the examination pattern, type and difficulty level of questions etc

* Once done with complete syllabus, go through JEE mock test papers , it will let you know your preparation level and and weak areas so that you can work on them and perform well in your examination

Thankyou