Hi there,
Without wasting a second you should start your work.
But keep in mind that people prepare for years to pass this exam and you want to do this in just 30 days.
But that doesn’t mean, that you cannot do this.!
Firstly, You have to understand what people do after enrolling themselves in Coaching Programs (Say 1 year program).
1.They Go through Basic NCERT TEXTBOOKS and Topics that have more weightage in exam(That is just based on trend. Last year many trends was smashed) and practice previous year papers.
The time management is also a crucial aspect but its very easy to manage.
2.Then after doing this they increases the boundary of syllabus just to ensure that they tackle anything miscellaneous and practice a lot. This is the most time taking part!