The solutions:
• Active recall: attempting to retrieve information from your head, noting that you'll fail at this often but each attempt (even a failed one) helps make it stick
• Spaced repetition: repeatedly performing active recall, spaced hours, days, and weeks apart to allow time to forget a bit before attempting recall again
Active recall can feel challenging and spaced repetition can feel boring, so successful learning sometimes feels both boring and exhausting... at the same time! 😥