When you have the energy things,you use that up quick and for everything you do it with should cost 1 energy.Also,when your gonna play this game the next day,the energy gauge isn't full all the way.I also experienced that when you click for 20 energy it doesn't give it to you,but it would give it 1 minute after and if you didn't get the energy you would click the energy again but it would just say come back later.Im about to delete this game is someone doesn't update/upgrade it.Thank You