Hello dear

If you are talking about the upcoming jee exam than i let you know that the jee mains will be conducted in the july month and you have exactly 2 months with you and for jee advance you have 3 months with you.

Jee mains will be held on 18 ;20;21;22;23 july and jee advance will be on 23 August 2020.

But in 2 months it is not possible to prepare jee because it consist of a huge syllabus which need a lots of practice and time to grab the concepts. For preparation you need to devote minimum 1.5 years ( and further it depends upon your understanding and your capabilities that how early you take and grasp any concepts and how many hours you are studying daily ).

Hope this is the helpful information for you.

Good luck