If you know the syllabus of JEE MAINS, you need not to worry.

Because all the syllabus remains same.

Just higher level questions are asked.

You can practice tricky and high level questions for JEE Advanced.

Practice mock tests. Study regularly and make notes.

Go through NCERT in detail.

All these will help you achieve more marks in Advanced exam.

Hope it help!

Hey the answer you needed is here,

First of all I would like to appreciate for your dedication to learn.

For JEE ADVANCED ,I personally  suggest the following things to be followed;

1. Get familiar with each and every word of NCERT physis ,chemistry and maths textbooks of class 12 &11.

2.Try to create as many theory   questions from textbook of your own( I found many self created questions in  the previous questions when I was solving them and I got 2021 jee advanced AIR 200)

3.Pratice questions from HC verma for physis ,arihant for maths advanced level.

4. Solve the past 15 years question bank.

5. Do check for career 360 course pack for jee mains and jee advanced which is very useful.

ALL THE BEST IN ADVANCE!!!!

Hope you are satisfied with the answer.

If you have any doubt, feel free to ask.