Five days is enough time to add realistic simulations without abandoning targeted work. Do one full mock early in the window so you can see how the pieces feel together under timing.

Use the feedback from that mock to choose the next drills, then do another realistic mock closer to the interview. You do not need a full simulation every day.

The final day should be lighter. Review patterns and key stories rather than trying to fix everything at once. If useful, this guide on first-round consulting interviews gives more detail.

5 days is enough for at least 2 proper mocks.

I'd do full mock -> fix issues -> full mock again.