How energetic would you say you are?
What gives you mammoth energy?
What inspires you?
What lights you up and shifts your state or mood from lethargy to one where you get moving?
“Energy, not time, is the fundamental currency of high performance.” (Loehr and Schwartz)
What could you do for you that you know works?
E.g. I just had a veg and fruit smoothie.
Why? Works for me in terms of energy and concentration.
It definitely don’t have to be that for you nor should it be.
Find what works, experiment and learn what energizes and inspires you and weave that into your day as far as possible.