Okay so start studying ASAP, earlier you start you’ve more chances of qualifying the exam.
Firstly clear your basic concepts and then study most important topics and then study important topics and then study lesser important topics.
Do not leave anything.
Solve PYQs of NEET and also solve some really good and different questions from any book or coaching material.
You can definitely clear NEET this year as you have around 2 months and you already know about the exam, you just have to study to complete everything once and then give mock tests.