Hello Aspirant,

Don't worry even if you have missed the preparation of JEE-Main from the syllabus of class 11th because as of now you are still having around 6-7 months for JEE-Main 2022 which is sufficient time for covering important topics of class 11th like SHM, Oscillation and Waves, Motion in a plane and straight line, Rotational dynamics. What you should do is just start reading these topics and clear your concepts for these topics then start solving numerical based on these topics because these topics are primarily numerical based so you have to develop your concept with solving good amount of numericals.

As you are well prepared with 60% syllabus of class 12th for JEE-Main so you need to do regular revision of that topics as well and along with this start solving papers of previous years and sample papers of JEE-Main which can be downloaded from the link given below :-

https://engineering.careers360.com/articles/jee-main-sample-papers

https://engineering.careers360.com/articles/jee-main-question-paper

You can also check out our JEE-Main Learner's program which  includes the full length Mock test series  and you check out this from the link given below :-

https://learn.careers360.com/knockout-jee-main-april/?product=27

NTA has also given the facility for mock test which you can give from the link given below :-

https://nta.ac.in/Quiz

I hope this information helps you.

Good Luck!!