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Too Many Reviews: How to Dig Out of a Spaced-Repetition Backlog Before Your Exam

· 4 min read

You were doing well. Then work got busy, or you were sick, or you just took a weekend off. Now you open your review app and there are 437 cards due. Tomorrow there will be more.

Every med school and MCAT forum has a name for where this ends: people just stop opening the app. Some call it "Anki bankruptcy". The tool that was supposed to stop you forgetting becomes the thing you avoid.

The good news: a backlog is a scheduling problem, not a sign that spaced repetition doesn't work for you. Here's how to get out of one, and how to avoid the next.

First: stop adding new material

New cards or questions create future reviews. Each new item you add today shows up again tomorrow, in a week, in two weeks. When you're behind, adding new material makes the hole deeper.

Pause new items entirely until the backlog is under control. This feels like falling further behind on content. It isn't: anything in the backlog is material you already learned once and are about to lose.

Then: work the backlog in a sensible order

Not every overdue item is equally urgent. A rough priority:

  1. Items you've missed before. Recently missed or repeatedly missed items are the most fragile.
  2. High-weight topics for your exam. Look at the exam's content outline. A topic worth 15% of the exam beats one worth 2%.
  3. Items that were overdue only a little. These are the cheapest to save.
  4. Old, long-interval items. Something you'd got right four times and now haven't seen in two months often comes back quickly, so these can wait.

Many apps let you sort or filter due items. If yours doesn't, just do the most recently missed first.

Set a daily cap you can actually do

Decide how much time you have, not how many items are due. If you have 45 minutes, do 45 minutes of reviews and stop. Clearing a 400-item backlog at 100 a day takes four or five days. Trying to do 400 in one night usually ends with you skipping the next three days, and then you're back where you started.

Accept some forgetting

Some overdue items will be forgotten. That's fine. When you miss one, it goes back to a short interval and gets relearned. That's how the system is supposed to work.

What you shouldn't do is mark something as "good" because you vaguely recognise it. That pushes it out to a long interval while it's actually gone.

If the daily load is simply too high

If you're working full time and your normal daily reviews take more time than you have, the backlog isn't the real problem. Some fixes:

  • Cut low-value items. If you imported a huge premade deck, many of its cards may be outside your exam or far too detailed. Suspend whole sections you don't need.
  • Fewer, better items. One question that tests whether you can apply a rule is worth more than five cards testing isolated facts around it.
  • Check your ratio of new to review. In the last month or two before a long exam, most of your time should go to review, not new material. If your plan still assumes all-new every day, the plan is the problem.
  • Use the commute for reviews, desk time for new material. Reviews work in short bursts on a phone. Learning something new usually needs focus.

Making the cards was half the problem

A lot of people burn out on spaced repetition before reviewing a single card, because they spent weeks making the cards. Writing good questions from a big curriculum is slow, and it competes with actually studying.

That's the part AI has changed most. You can paste a reading into an AI chat and ask for questions on each key point. Check them against the source, since AI sometimes gets details wrong, but checking is much faster than writing.

Tools like Tali go one step further and write the questions from your uploaded material, then schedule your misses. Answering practice questions in Tali is free, so a big review queue never costs extra. But whatever you use, the rules for a backlog are the same: stop new items, cap the day, review the fragile items first, and be honest when you've forgotten something.

The one-line version

When you're behind on reviews, stop adding new material, do a fixed amount each day, and start with what you've missed before. The backlog shrinks faster than it feels like it will.