Harry Potter: Hogwarts Mystery Cheats for Android

Later on in the game, other areas open up and you can find more energy that takes a bit of time to come back once you get it.
Forbidden Forest - The big spider web in the tree by the Spiders Lair
Magical Creatures Reserve - the gray dog/wolf

You can find extra energy by tapping specific objects in different places at Hogwarts. It will take a little while for them to recharge, but worth picking up +5 energy.
Location: Castle Grounds
If you scroll to the right you will see a large stick on the ground. Click it and Hagrid's dog will get it. Earn +1 energy.
Location: Dungeons
Just to the right of the kitchens you will see Dobby sleeping. Click on him to wake him up and earn +1 energy.
Location: Lower floor (West)
Just outside the Great Hall. Click the right pillar to light flame. Earn +1 energy.
Location: West Towers
To the left of Moaning Myrtle's Restroom there is a painting. Click on it to add fruit to picture. Earn +1 energy.
Location: East Towers
The first painting you see will be black. Click on it for a bride to appear in frame. Earn +1 energy.
This is just what I've found four Year 1. They refresh after a while so you can use them again. 😊