Hi

It is ok even if you don't want to join  coaching in your drop year  as there are many students who prepare for JEE main without  coaching and not only prepare get good rank and get into good Engineering College as well ,you can do the same but yes to prepare without  coaching you will have to put extra effort and be honest and consistent towards your preparation specially because you haven't studied well in 11th and 12th.

Follow the below tips to prepare well for your JEE and score 190+ or more  -

----------------)  First of all go through each chapter and while studying the chapter, your major focus should be on understanding the concepts .  In case, you face any difficulty in any topic you can take the help of free online platforms like YouTube etc .

The top books which you can follow for the preparation of your JEE  examination  are provided below:-

>>>>> CHEMISTRY :-

*** NCERT Textbooks - Class XI and XII :- master it as many times questions have been  directly asked from NCERT

*** Modern Approach to Chemical Calculations by R.C. Mukherjee:- best for practicing numericals in physical chemistry

*** Organic Chemistry by O P Tandon:- best for clearing all your doubts in organic chemistry

*** Concise Inorganic Chemistry by J D Lee:- Best for your inorganic chemistry.

>>>>> PHYSICS :-

***  NCERT Textbooks - Class XI and XII for physics

*** Concepts of physics Vol I and II by HC Verma :- the best book for mastering physics for jee preparation

*** Understanding Physics by D C Pandey

*** Problems in General Physics by I.E Irodov

>>>>> MATHEMATICS :

*** Maths XI and XII by RD Sharma :- good for clearing your basic concepts along with NCERT

*** Complete mathematics by TMH

*** New pattern mathematics for JEE by Arihant publications

You can get detailed information regarding best books for JEE Mains  list at

https://engineering.careers360.com/articles/best-books-for-jee-main

----------------) 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.

----------------)  Short breaks :- take short breaks in between your studies, studying continuously can be brain tiring and it becomes difficult to focus and study with concentration, so take breaks to relax and refresh your brain.

----------------)  Make short notes:- You should make chapterwise short notes for each chapter and it should contain all the important concepts and formulas. These short notes will be a great revision tool for your examination.

----------------) Set  goals :- set daily  like I have to cover these many topics today, weekly goals like I have to  cover these chapters this week and  solve their mcqs too by the end of this week and similarly set monthly goals to cover the syllabus and meet them without any fail.

----------------) Follow a routine or timetable :- you can make a routine and religiously follow it and try to give at least 7- 8 hours to study each day in your routine.

*** PHYSICS is the  toughest part for most of the aspirants  as it has both numericals and concepts to deal with , so keep at least 3 hours each day for Physics.

*** In Chemistry you have to deal with reactions and learn them and solve questions as well, so give at least 2 hours daily to Chemistry

*** Mathematics is all about practising questions, so try to give at least around 3 hours each day for maths

----------------) Revise:-  revise your concepts,  formulas etc at regular intervals  . Revision is very important otherwise as you move forward in your syllabus, you start forgetting the concepts you have learned before and you won't be able to perform well in your examination.

----------------) Solve previous year JEE  question  :- Solving previous year questions will let you know the examination pattern, type of questions asked in the exam and difficulty level of questions, also concepts  of the questions often gets repeated so it will be of great help to you . You can get previous year papers at https://engineering.careers360.com/articles/jee-main-question-papers .

----------------) Go through JEE mock test papers :-  it will let you know your preparation level .After solving each mock test paper, analyse yourself which will help you to know your weak areas /topics  so that you can work on them and them strong so that you can perform well in your examination.

And to help you in your self studies, we have jee main knockout for you, the link for the same is provided below

https://learn.careers360.com/knockout-jee-main .

Thank you