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The Two-Week Rule for Scheduling Your Exam

Booking a date too early or too late both backfire. Here's a better way to pick one.

Published 2026-06-15 · exam prep · planning · CoStudy

Booking your exam date is a commitment device, and commitment devices only work if the deadline is realistic. Set it too far out and you'll procrastinate into the final two weeks anyway. Set it too soon and you'll walk in underprepared, which is worse than not booking at all — a failed attempt costs money, resets your confidence, and on some exams comes with a mandatory waiting period before you can retake it.

A useful rule: don't book a date until you can pass a full practice exam, under timed conditions, at roughly the passing threshold. Then book two to three weeks out — enough time to shore up your weakest domains, not so much time that you lose momentum.

This means your study plan should front-load broad coverage and back-load a real practice exam, not the other way around. If you're several sessions into a CoStudy bank and haven't tried the practice exam yet, that's usually the sign you're guessing at your own readiness instead of measuring it.

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