“Boards don't test how much you read. They test what you can write down in the format the marker is looking for.”
The syllabus is enormous, the exam decides where you go next, and everyone around you seems to have started earlier than you did. Almost every class 12 student I've spoken to describes the same feeling, and it usually ends with opening the textbook at chapter one because that at least feels like doing something.
That's the worst place to start, and boards give you a much better one.
Boards are predictable, and that's your advantage
This is a national exam with a fixed pattern. The paper has a known structure, a known distribution of marks, and years of previous papers you can look at right now for free.
That means you already know roughly what the paper will look like. Most students never use this. They study the syllabus as if it were a book to be finished rather than an exam to be passed.
So before you read a single page of notes, sit down with last year's paper and attempt it properly. Not to score well, you won't. To see what the exam actually asks for and where you fall apart.
It's uncomfortable and it takes one afternoon. It saves weeks of reading things you already knew.
Work backwards from the paper
The normal approach is: learn the chapter, then test yourself. For boards, the reverse works better.
Take the last several years of papers and write down what repeats. Not the exact questions, the types. You'll notice that certain chapters carry most of the marks, that certain derivations or diagrams come up again and again, and that some topics you spent weeks on are worth almost nothing.
That list is your study plan. Not the table of contents.
This isn't about guessing the paper. It's that a finite exam can only ask a finite number of things, and you've just seen the list.
Marks per chapter should decide your hours
Look at how the marks are actually distributed, then compare it with where your time is going. For most people those two things have nothing to do with each other.
A chapter worth a lot of marks that you're weak in deserves most of your week. A chapter worth few marks that you already know deserves almost none, however satisfying it is to revise.
That sounds obvious written down. In practice, almost everyone spends the most time on the subject they like best, which is usually the one they're already good at.
Write answers, don't just understand them
This is the single biggest gap I see in how people prepare for boards.
There's an enormous difference between understanding a derivation and being able to produce it, on paper, with the steps laid out, in the time available. Boards reward the written answer, including the steps, the labelled diagram, the units, the format.
So practise producing, not recognising. Close the book, take a blank sheet, and write the full answer as if it were the real paper. Then compare it against the marking scheme rather than against your own feeling of whether you knew it.
You'll usually find you knew the idea and lost marks on the presentation of it. That's a very fixable problem, but only if you find it in November rather than in the exam hall.
Practicals and internal marks are the easy marks
They're worth real marks and they're the most predictable part of the entire year, and people leave them to the last week anyway.
Anything that's known in advance and can be prepared calmly should be finished early. It's the cheapest score on the board, and getting it out of the way also takes a surprising amount of stress out of the final months.
A week that actually works
Four things, in this order, and it doesn't need to be more than a couple of hours a day over several months.
One question from something you can't do. Not a whole paper. One question of a type that keeps beating you.
Close everything and write it from memory. The derivation, the diagram, the answer structure. On paper, from your head. This is the part that teaches, and it's the part everyone skips because it's uncomfortable.
Check against the marking scheme, not against your feeling.
Write down what you got wrong. One running list, kept all year. That list is what you study. Everything else is reading.
Once every two weeks, do a full paper against the clock. Not more often, because it eats time, and not less, because writing speed is a separate skill and it has to be practised.
The last month
Stop learning new chapters about two weeks out. A topic opened for the first time in February is usually a vague memory, not marks.
Go back to your list of mistakes instead. It'll be shorter than you fear. It's the only thing worth revising at the end, because it's the only thing still escaping you.
And sleep normally during the exams themselves. A tired brain is bad at pulling things out, and pulling things out is the whole exam.
The short version
Don't start at page one. Start with a previous paper, write down what repeats, and study that.
Attempt questions, close the book, write the answer from memory, mark it against the scheme, and keep a list of what you got wrong. That list is your studying. The rest is reading, and it only looks like work.