It depends on your  capability. Coaching & Institutes help you to cover the syllabus & guide you the way for the study. To crack the exam you need to do the self study & hard work with planning.

If you are planning for January Session then time is less but if you are clear with the basic concepts then you can easily crack it. Here are some important tips you can follow for the exam:

Improve your Weak Points: Stressed over some topics or formulas which you just cannot seem to understand? Give more time and focus on these topics to improve it. Keep small notes and constantly revise those concepts which has been hard to understand. By constantly studying the topics you find difficult, you will be able to be well prepared in them for the upcoming examination.

Write Notes and Prepare Flash Cards: Notes written in small diaries are highly accessible and you will be able to study from them anywhere anytime. By writing down those complicated theories and formula and revising them, you will be able to remember and understand them more efficiently. Similarly, create flash cards to help you with quick studies and revision.

Attempt Mock Test and Solve Sample Papers: Mock tests will give you an almost real experience of how the examination will be. By solving mock tests, you will be able to work on time management while at the same time understanding the question paper pattern. Similarly, sample papers will let you practically apply all of the topics you have been studying till now. Preparation using mock test and sample papers will let you know how much syllabus you have covered and where you will need to work to improve.

Careers360 has also come up with JEE Achievers Preparation package which includes unlimited tests, online 24*7 expert chat facility system, conceptual e-lectures and many more plus points for you. It has a time table feature as per which you will have to choose the exam date and your complete time table will be auto-created as per what topic you should focus on and the amount of time to be given on each topic.

Apart from the above mentioned:The best part is-

In respect to the program mentioned, you can practice the tests any time of the day and that too unlimited, so utilize it to the extent.
There are concept wise lectures, which means you can get your minimal to important concepts cleared and followed with it can give the test and analyse your performance.
Even if you plan to study at 3am, and you face any query, you have online doubt facility system where the experts will help you asap and you don't have to wait till next day.

Further to know more benefits helpful for you, you can check details and proceed from here- https://goo.gl/zTUHWw

Good Luck!

HELLO,

yes, you can do better with short term coaching.the important books and tips will be in this link

https://engineering.careers360.com/exams/jee-main

then you should start your preparation from your own +2 syllabus,try to complete it within one month and please refer and practice NCERT books.prepare well and revise the whole in last month.

I Hope this information will be useful to you.

if you need additional information,let us know to help you.

Thank you!!!:)