Here's a hack to just get more energy: (only works if you have apple)
When you run out, close the running Kim game, go to general dates and time, and then turn off Automatic to Manual. Then change the date to one day ahead. Go back to the Kim Kardashian game, and the moment the loading screen comes up, exit out (has to be done quickly). Go change the date back to the current date, go to the game and play for 10 seconds, go back and change manual to automatic so the time is up to current date and when you go back to the game, it should have full energy again. You can do it however many times and it seems like a lot of steps but it takes like a minute. I wouldn't have had the patience to keep waiting for the energy to reload.
-The cool guest
When you run out, close the running Kim game, go to general dates and time, and then turn off Automatic to Manual. Then change the date to one day ahead. Go back to the Kim Kardashian game, and the moment the loading screen comes up, exit out (has to be done quickly). Go change the date back to the current date, go to the game and play for 10 seconds, go back and change manual to automatic so the time is up to current date and when you go back to the game, it should have full energy again. You can do it however many times and it seems like a lot of steps but it takes like a minute. I wouldn't have had the patience to keep waiting for the energy to reload.