Dear Aspirant,

The first and most important thing for you is to work on your basics. Get the NCERT books and read them line by line. You will find at least 15-20 questions from these NCERT Books itself. Do not try to solve books like HC Verma with weak concepts as they will decrease your confidence. If you have, say 6 months left, I suggest you must spend 4 of them on building up your basics. 

Only then you'll be able to utilize your next 2 months. In these two months try to solve good questions from books like HC Verma, try to get mock test papers from coaching institutes and also solve at least 10 years previous papers too.

Here are a few additional links to guide you further:-

https://engineering.careers360.com/articles/how-prepare-for-jee-main

https://engineering.careers360.com/articles/jee-main-preparation-tips

Hope this helps.

Comment your doubts, if any.

Thank You.