Hi Niha

First of all you have to be familiar with the exam pattern.Before practicing question papers you need a good foundation for 11th and 12th ncert.Ncert is a key for the preparation of neet.Make your concepts clear and practice more and more papers.The candidates have to be aware of the concepts chapters and sections in the syllabus.To know more about the preparation weightage of chapters and exam pattern

https://www.google.com/amp/s/medicine.careers360.com/articles/neet-preparation-tips/amp

https://www.google.com/amp/s/medicine.careers360.com/articles/how-to-prepare-for-neet/amp

The above articles will help you for the preparation. All the best!