Ok yes sure... I'll suggest you some books... 

Talking about chemistry FIRST) MTG NEET CHAMPION is the book that I had used and it was really very up-to the topic and very useful. The level is properly maintained it.. Not too easy as for cet or not too tough as in JEE. And it's really a helpful book especially in physical and Organic chemistry. Read ncert books and solve this mcq book and it will help to increase your basics a lot. 

For biology, NCERt is called as the Bible book. Read it thoroughly line to line word to word and make sure u read it AGAIN AND AGAIN. 

NOW, About the most dreadful subject for many - PHYSICS :- 

The most important factor to be considered while preparing for Physics is the selection of books. Many students fall into the Trap of selecting very high level books like Irodov or University physics ( yes, I have seen people solving this book. Result : preparing again for NEET 2018 ) which may be required for mains or JEE advance but not at all for NEET. Opt for the books meant for NEET like DC Pandey, Pradeep, Dinesh publications, coaching modules. The second important point is your approach while solving questions. When solving a question, the first thing that should strike the mind is the concept underlying the question, and not the formula. Many students , when facing a question immediately start scratching their minds regarding which formula to apply but physics is not about putting formulas but about putting concepts. So, don't just rush for formulas but visualise the questions and understand the concepts, what we call Funda..

Now Come to the questions “How to do smart study”.

1. I’ve never asked anyone as to How many hours should be studied because it is totally depends on you. It varies person to person. What matters is quality study that you do and not the number of hours.

2. Learn the same information in a variety of ways.
Before starting my class notes, I used to read first NCERT or any reference book. Direct reading from class notes will not increase your knowledge. I also used to watch video lectures. So there were many ways to study the same information.

3. Simplify, summarize, and compress the information.

If there is any information or topic which you think is complicated, then try to represent it in a flow chart, comparison table, diagram, or mind map.

4. Test yourself time to time.
you have to check your mistakes and speed by giving regular mock tests in these two years. Every Top Ranker uses this strategy to come out with flying colours. I also used to give mock test time to time.

5. Focus on effort, not the end result
You should never be depressed in these two years while preparing. Once I got less marks I got depressed which made me demotivated and reduced my speed for the next mock test. Then I decided not to be demotivated and focused on my effort, not the end result.

6. Solve past years questions paper after completing your syllabul.

Hope this will help you. (ps-this is based on my personal experience)