Hey,
Joining the batch totally depends on you. Now let me tell you that, if you are good at your own, then there is no need to join that course. Just start revision and solving previous year question papers. This will boost your confidence, and your score will improve.
But if you feeling some doubt on your studies and finding some difficulty in preparing by own, then you can join that course. The course by Physics Wallah Sir is good. It will cover your basic concepts. It will provides you a quick revision for the boards.
Hope it helps.
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