Revision is the key to a great score in any examination. By now, you have completed most of the syllabus, now just focus on the revision. Now revising the theory, important formulaes etc from the notes you have made and try on recalling them by writing them on a paper. Also practice, the PYQ's of the JEE MAINS, with time constrained i.e., take a 3 hours session and solve the PYQ paper and check whats your accuracy. Don't go to learn new concepts at this moment, as it may create confusion with the already learnt subject matter.

For the JEE MIANS Revision Tips consider the link below:

https://engineering.careers360.com/articles/jee-main-revision-plan

I would suggest you to revise well the high weightage chapters, which you can get by visiting the link below:

https://engineering.careers360.com/articles/jee-main-syllabus-weightage

I hope this helps. Wish you a great eve!