Start with NCERT books, which are the base for JEE main. Build a strong base of the concepts and theories from NCERT books.
Reference books cover topics from basic level to advanced level application-based questions.
Nowadays, accessing information from the internet has become very easy. You can use your computer or phone to browse different websites, which provide educational content and study materials.
The more you revise, the more you will memorize. The revision will help you to remember important facts and formulas, which ultimately improves your problem-solving skills and accuracy.
It is very important to practise solving JEE previous year question papers. This will help you to get an idea of the question pattern and mark scheme from each topic.
Mock tests are available on the official website of NTA (National Testing Agency). The more you practise mock tests, the more familiar you will be with the exam.
These notes will be very useful for you when you have only a few days left for the exam. You can revise these notes and memorize important points and formulas.
You should always have a positive attitude. Believe in yourself. Always remind yourself what your goal is.