How do I practice the previous year's question 1 month before the JEE Main?

How do I practice the previous year’s question 1 month before the JEE Main?

It will be very beneficial if you practice papers before exam. Your strategy for solving paper should be that you should solve 1 paper in 3hr continuous sitting like the way you will be giving your main exam and then after solving you should analyze your paper in a way like make a note of the mistakes categorize them if the mistakes are conceptual or you committed silly mistakes in questions and then revise the topics in which you lagged.
If possible try to solve 2 papers a day if your revision is done properly that will help you a lot and will give a good practice of concepts through questions.