The day before an interview should be about stability, not a final cram session.

Do a light review of your fit stories, case habits and logistics, then stop early enough to sleep properly.

One short warm-up case or math set can be useful if it builds confidence, but a marathon of new frameworks usually creates noise.

Confirm the link, time zone, interviewer instructions, backup internet plan and anything you need on your desk. For more detail, see the first-round consulting interview guide.

imo Final round nerves were worse for me because I kept trying to read the interviewer's reactions.

I was much calmer once I stopped trying to interpret every interviewer reaction in real time.