JEE Main Preparation

First of all, clear all concepts with NCERT.
1. A Das Gupta for Maths
2. Previous Year Question Solutions Book
1. HC Verma for Physics
2. Previous Year Question Solutions Book
1. OP Tondon for Physical and Organic, NCERT/Kapil Kumar Wadhwa For Inorganic
2. Previous Year Question Solutions Book.

Yes you have better to opt long term for preparing for JEE Mains as you are taking gap of one year. We can have 3 attempts for JEE Mains. With in that 3 attempts you have to clear the Mains exam.

You have Arihant series of solved papers and engage publishers solved papers, which provides very neat and clean solutions.

I am attaching a link of channel which will give you some support to prepare for competitive exams like Mains and boards. https://www.youtube.com/user/MrMspsp.

Go thoroughly with the previous year question book. Actually 10 days is very short time to practice. But practice as you can.

Check this video for some important topics for JEE Mains preparation
Link- https://www.youtube.com/watch?v=y2W6sh1nClk&t=4s.

Check this video for some important topics for JEE Mains preparation
Link- https://www.youtube.com/watch?v=y2W6sh1nClk&t=4s.

Check this video for some important topics for JEE Mains preparation
Link- https://www.youtube.com/watch?v=y2W6sh1nClk&t=4s.

Allen and Resonance are the good one as I experienced. Fee for a year, it is near about 1 lack. And if you have good score in 12 or cleared JEE paper with good score you will get a good amount of concession in your fee. It is upto 100% of total fee.