Hii

Its not about how many questions you do. Its about are you getting the fundamentals of each topic or not. Practicing for a paper is good but you need to understand whether you are clear with each topic or not. If you are clear with the topics then you need to give as much as mock test possible by you to be sure with that topic. To be sharp in that topic or section Kindly give as much as mock test possible by you.

All the best.