A 90-Day GMAT Study Plan, Month by Month

Before You Start: Know What You Are Preparing For

The GMAT has three sections: Quantitative Reasoning, Verbal Reasoning and Data Insights. Each takes 45 minutes, for 64 questions and 2 hours 15 minutes in total. You choose the order of the sections, you can take an optional 10-minute break, and you can review your answers and change up to three of them per section.

Your Total Score runs from 205 to 805, and each section is scored from 60 to 90.

Ninety days is enough time to prepare well. The plan below gives each month one clear job: build foundations, then build volume, then simulate the real test.

Week 1: Take a Diagnostic, Then Analyse It

Start with a full-length official practice exam under real conditions. Do not prepare for it. Its only purpose is to show you where you stand.

Then spend the rest of the week on the most useful exercise in the whole plan: go through every question you got wrong and ask why.

Log each one in the myExamRoutine error log. By the end of the week you will know which topics need content work, which need a better method, and whether timing is already a problem.

Month 1: Foundations

The goal this month is understanding, not speed. Most students skip this step, and it is why their scores stall later.

Work slowly and deliberately. Write out every Quant step and annotate every argument. This builds the fluency that lets you go fast in month 3.

End-of-month check: retake a single timed section in your weakest area to see whether your foundations have improved.

Month 2: Volume With Feedback

Now increase the number of questions, but keep every one of them useful. For every practice set, log the topic, the number of questions attempted and how many you got right, using the Practice tab on each subtopic.

Follow one rule: if your accuracy on a topic is below 70%, go back to content review before doing more questions on it. Doing more questions on a topic you do not understand mostly practises your mistakes.

Around the middle of the month, take your second full practice exam. Look closely at where your errors fall. If most of them are clustered in the last part of a section, your problem is timing, not knowledge. Start timed section drills and aim to finish each section with a few minutes to spare.

End-of-month check: your weakest topics from the diagnostic should be close to or above 70% accuracy.

Month 3: Simulation and Polish

In the final month you learn very little that is new. You practise, review and simulate the real test.

A typical week:

Take each practice exam the way you will take the real one: same time of day, the section order you plan to use, and the optional break where you plan to take it. Practise using your three answer edits wisely too. Save them for questions you are genuinely unsure about.

Final week: take your last full practice exam about five days before the real test. Then switch to light review of your error log and notes, and rest the day before.

The Three Habits That Matter Most

1. Keep an error log

Record every question you get wrong with a note about why. Review a handful of old errors before every study session, so each lesson gets learned once instead of repeatedly.

2. Track accuracy by topic

Without tracking, practice turns random. When you can see that one topic is stuck at 62% accuracy, you know exactly what to work on next.

3. Slow down to speed up

Deliberate, careful work in the first two months builds the skill that makes speed possible later. Rushing early just makes you fast at making mistakes.

Setting This Up in myExamRoutine

Enter your exam date and study days in the Plan tab. The planner spreads your topics across the days you have and keeps the final stretch for revision. Then use the tracker's Practice tab for accuracy, the error log for mistakes, and the mock test log to follow your practice exam scores from month to month.

Three hundred questions with full analysis will do more for your score than a thousand done at random. Practise deliberately, and let your own data tell you what to study next.