I don't know where you live. You may live in a palace on a sprawling estate or you may rent a lowly flat in the middle of a city. Or you might live somewhere in between.
No matter where you live, you can make it your kingdom. How? Simple.
"I am the queen of my own life."
Go ahead, say it. Out loud. Feel free to change your title, if it suits your fancy. Empress, duchess, princess, lady, viscountess... The list goes on and on. Or you could make up your own title.
Next, name your kingdom. Or empire. Or duchy. Whatever suits you. You could call it your last name, like "The Smith Empire". Or "The Kingdom of Smith." Or make up a name, such as "The Kingdom of Cupcakes" or the "Empire of Doodlemore." You could even chose to name your kingdom something like Downton Abbey or Mansfield Manor.
Then get to work! You are a royal now, are you not? If you've been looking for a reason to start again, this is it! Redecorate your palace or yard, dress up more often, cook a feast! Feel the empowerment of being royal!