You enjoy your alone time .. gather your thoughts, read a book, watch a movie, take a walk .. all sorts of things.
If you're talking about being alone and not in a relationship ... you really owe it to yourself not to hinge your happiness on having someone in your life. That leaves you very vulnerable. Best idea is to find what make YOU happy and explore that. Personal happiness will get you so much farther in the longer run.
I think about my poor sister and her nine children She never gets any peace and quiet or privacy You have to be there, its unbelievable! I get a kick out'a seeing my sis pull her hair out. Lol It actually makes me feel happy being alone if for just a moment...So just think of something u are so glad u dont have to deal with and when u see it, its sooo hilarious and you will get that happy feelin!
Watch a funny comedy or listening to music
I generate my own euphoria...
"Stars when you shine you know how I feel
Scent of the pine you know how I feel
Oh freedom is mine
And I know how I feel
It's a new dawn
It's a new day
It's a new life
And I'm feeling good"
If I told you, Rosie would be pissed.