Hello aspirant,

If you have no preparation for JEE mains First Attempt, then it is totally fine as you can also give the second attempt without giving the First attempt.

The registration dates and application form for the JEE mains session 2 has not announced yet, but it will be announce soon on the official website of JEE mains.

If you have not a good preparation, then you can utilize these free time to prepare well for the JEE mains session 2 attempt. You can start by making a good and proper time table schedule, preparing and practicing previous year JEE mains Papers for almost 10 years. Solving Mock tests is also considered as a best practice to score good results in JEE mains.

Further, I am recommending you some of the best Preparation tips to practice for the JEE Mains examination :

Prepare A Well-laid Plan

Draft a daily schedule.

Prioritize the topics that require more time and relevant to the subject.

Stick to the routine and pay special attention to problems.

Get Hold Of The Syllabus

Manage your time effectively

Understand Basic Concepts

Before delving into JEE preparations, know the JEE syllabus and understand the basic concepts present in the syllabus.

Evaluate your knowledge on basic concepts.

Make notes on required topics.

Choose The Right Study Material

Furthermore, You cna follow the below mentioned books that will be very helpful for you in acing the JEE mains preparation :

JEE Main Books Important for Mathematics

Trigonometry by S. L. Loney

Higher Algebra by Hall & Knight

Maths XI & XII by NCERT

Coordinate Geometry by S. L. Loney

Problems in Calculus of One Variable by I.A. Maron

JEE Main Books for Physics

Problems in General Physics by I.E. Irodov

Fundamentals of Physics by Halliday, Resnick & Walker

Concepts of Physics Vol I and II by H.C. Verma

Books for JEE Main Chemistry

Organic Chemistry by Paula Bruice Yurkanis

Organic Chemistry by Morrison & Boyd

Inorganic Chemistry by J.D. Lee

Numerical Chemistry by P. Bahadur

Further, For more information and complete details about the JEE mains tips and strategies and about the subject wise weightage in JEE mains, you can follow the belwo link :

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

I hope that this will help.