Read this overall guide for your preparation:

1. Be sincere in your efforts

2. Practice from limited and standard books like SL Arora HC VERMA, etc. Dont do too many books. Do limited books, and do it more number of times. Become perfect in them.

3. Get a good Guru, if you can find ! Guru is the person who knows what should be done and what should not be done. He/she is the best guide.

4.Focus more on previous year questions of NEET ,AIIMS

Chemistry: NCERT most important. Other than that, for reference, use OP Tandon, MS Chouhan, Himanshu Pandey, Pradeeps, Morrison and Boyd, SN Sanyal etc

BIO: Start with NCERT, . Then go ahead with previous year questions. You can also refer to Trueman’s.

Physics: Start with SL Arora and HC Verma. Then go ahead with previous year Questions directly.

Practice from NEET Champion, NCERT at your fingertips , MTG NEET 31 Years, MTG AIIMS 25 Years for all three subjects ! And if time permits, practice IIT JEE Mains questions too..

No need to do any other book !!

Practice previous year questions MANY TIMES.Become perfect in them.Solve other people’s doubts. These will help you score better :). People run after so many modules and crap test series. Instead you should focus on limited material and do it more number of times !! Many questions ask only basic concepts but a good clarity in them. Self study is definitely most important. But coaching really helps you score more

Also, I recommend all my students to practice Sudarshan Kriya of the Art of Living. It gives you very good clarity of mind and keeps you focused in exams. In fact Nishita Purohit (AIIMS Rank 1) used to practice it daily !

Mantra: Arise awake and stop not till the goal is reached :) ~Swami Vivekananda

This is what Bruce Lee used to say: I do not fear the man who has practiced 10 thousand kicks once but the one who has practiced 1 kick 10 thousand times ! :) So do limited things and become prefect in them !

Hope it helps!

Good Luck :)