"Skip": exponential-backoff deferral mechanisms and fuzzy inboxes
Some techniques can help up front: don't "stockpile" material for some future day; avoid writing prompts in response to a feeling of "should"; write about connections, consequences, implications—not just about facts; avoid tangential "orphan questions"; etc. But this isn't enough. Review sessions need ongoing grooming to stay interesting. If you don't add anything new for a while, your sessions will feel stale. If you often forget an answer, you must refactor the question or risk future eye-rolls.