How to get coins and energy

Energy:
Energy is automatically regenerated overtime & will stop regenerating once you've hit your cap.
There are various offers available allowing you to purchase energy using tokens.  
                
Tokens:
Token is earned every time you level up, this will be automatically added to your account.
Free token can be claimed from the token store screen, there is a cooldown timer before you can claim this again.
Extra tokens along side other rewards can also be earned from the season pass, check out the rewards screen to see more on the season pass.