How do you get your character back if you accidentally clicked start a new family with it?

In the main menu on the character(s) you stared a new family with, there should be some buttons in the top left hand corner of the screen, one being the Rocket Games logo where you create your in game account, the one next to that should be a family tree or tree logo, tap that and then you can tap on your old family you can play between them just remember to change the characters in the tree icon. 😃