To create Your Home, you need to reach level 3 in the game. Decorating it is very simple and super fun! From the map on the top right corner of the game, visit Your Home.
Once there, click on the edit button , pick the items you would like to add to YourHome from the shop and place them in YourHome. Once you are happy with how everything looks, click on the green check button on the top left corner , give a name to Your Home and click OK to save.