Yes, Physics is the most difficult section in NEET Exam. So, you have to prepare yourself well for the exam.
For NEET Physics preparation, you should always carry a notebook and write down all the formulas, derivations or anything important for the exam. You have to learn those formulas daily at least for once.
Solve previous year question papers. This is the best way to prepare for the exam as this will give you a clear idea about the pattern and difficulty level of the questions.
Also start taking online mock tests. This will help you analyze your level of preparation and also increase your speed and accuracy.
Best of Luck!