How do I prepare for the JEE without coaching? To what books should I refer?

How do I prepare for the JEE without coaching? To what books should I refer?

To be honest this is the best decision you have taken in your life.
You would not be wasting time and money in tuitions now.
First thing, prepare extremely well for your board examinations.
Read and understand your board reference books thoroughly and only then move on to JEE.

Follow this pattern :-
Read and understand a single chapter from your board textbook.
Solve the behind questions from your board textbook.
Purchase the subject wise past paper JEE textbook and solve the questions from it.
After all topics are covered solve the model test papers of JEE which you can find online for free.
This is it… but the key to crack JEE is how well you did you understand the topics and not how much you know.
If you get any doubts in the topics you can refer to video lectures on YouTube or ask on QUORA…
I hope this will help you and it will also help you to crack other examinations also.