Hello,

I would say to choose coaching  or not is more of a personal preference, if you feel you need the guidance of mentors, and probably going to coaching classes will help you a lot more, you should definitely go for it, having said this I would also like to point out there have been innumerable aspirants who have done self-study on their own whether they are working or not, today with the advancement of technology and Internet everything is easily accessible, there are many sites which have been of immense help to many aspirants with their daily question papers or answer writing practice,providing monthly current affairs pdf, there are topper answer sheets available to help you out in terms of what all details to include in your answer writing, how to present your answer so that you can get extra marks,these all are little things but are of immense importance, the candidates have further learned the vital points in order to crack this exam, things such as time management, choosing the required study materials, this exam has humongous syllabus, and the first and most important step for initiating the preparation is to be acquainted with the syllabus, as this will help you know what to read and what to skip, the thing about self-study is you have to be self-discipline, there are some people who are good at it and then some who aren't, so this varies from person to person, there isn't one rule fit all here, you can listen to few of the toppers' interview in order to get an idea how to go about this entire process, it's not that you have to do everything they did as I said we all are different hence you have to know what works best for you, these interviews will provide you a lot more detailed insights about the exam.