Hello student if you're starting from now you need to be more focused and determined as time is less, you need to practice as much as you can so that you can Learn things easily. Prefer NCERT to build your basic concept and make sure you do each and every example and exercise questions of Ncert before jumping to a reference book.

You can also subscribe to careers360 knockout package for preparing and qualifying the entrance examination, refer to the link mentioned below - https://learn.careers360.com/knockout-neet-may/

Feel free to comment if you have any doubt

Good luck