Hello dear,
First of all, I would suggest you to kindly have faith in yourself. Believe that you can crack it. And then please solve previous year question paper, try solving sample papers, you can take online classes. There are many youtube videos available for free to learn.
You can visit this https://school.careers360.com/ncert/ncert-solutions-class
to practice your mathematics skills.
Further, you can also have a look and Solve Sample p apers-
https://school.careers360.com/download/sample-papers
All the Best!!
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile