Here is a simple plan that actually helps you stay focused and calm.

The last 24 hours are not the moment to study hard.
You already spent months learning, doing labs, and practicing questions.
Your brain needs rest, not pressure.

The night before, keep things easy.
Do one small lab or a few simple questions just to stay warm.
Eat something you enjoy.
Before my exam, I just had a nice dinner. For me it was "magret de canard". (a southern French meal!)
No intense labs, no long videos.

Then rest as much as you can.
Try to sleep around 7–8 hours.
If you can’t sleep, just stay in bed and relax. It still helps your mind recover.

On exam day, avoid TikTok, Reddit, or last-minute studying.
Do not try to learn new topics.
Stay calm, breathe, and trust the work you did for months.
A clear mind helps more than any last-minute “cram”.

Your result will come from your long-term preparation.
Not from the final rush.

What are you going to eat before going to the CCNA exam?