The tasks do take up an awful lot of energy. I'm starting to not be bothered with it.
What you need to do is find new contacts then delete the contacts you already called who has still some cooldown time ongoing and optimally those who have fewer fans. The higher fans they have, the better you do with your tasks.
I hope they patch the hairstyle, clothes, furnitures and appliances, almost everything is locked in by gems and I'm not here for that. The charts also needs some fixing.