2 days before: Keep it broad, but focus on your weaknesses. Don't try to read FA. Focus on images, consistently confused topics, missed qbank questions & memorizable facts (drug names, bug names, etc). Get a lot of sleep two nights before, anticipating that you will get less the following night.
1 day before: If anything, finish your review from the previous day, but only for a few hours in the morning. Stop early and do something fun and exhausting in the afternoon so you'll be tired at night. Don't try to cram anything the night before. The most recent things you see will sit in your working memory and bias your answers towards those topics.