Best not to keep guinea pigs on wire. Not good for their feet.
Where do I get my energy? I drink a pot of coffee in the mornings to get revved. Then a splash of wine with lots of soda to wash down the ibuprofen. Iced tea by the pitcher with lemon. More wine spritzer or homemade sangria with fruit juice. I eat two small meals and one huge one a day (lunch is usually big). Nap in the heat, which we call "siesta" around here. Up before the sun, bed usually around 11. I'm not nearly as productive as I was, but then I'm pushing 60 now too. I ran distance in school, like miles and marathon distance. Stamina, not speed is my thing.