Look at the emotions and events in your private stories. If they are full of hope and are private musings, 'Hopeful Hidden Tales' could be a great name. Consider the setting of the stories too. If they mostly take place at night, 'Nocturnal Private Narratives' might be suitable. Also, using your own name or initials in a creative way can add a personal touch, like 'J's Private Journeys' if your name starts with J.
You can think about your own feelings related to the stories. For example, if they are about your dreams, you could name it 'Dreamy Private Tales'.
One way is to use words that are associated with secrecy or privacy, like 'Shielded Stories' or 'Veiled Vignettes'. Another approach is to consider the main theme of the stories. If it's about love in a private way, 'Secret Love Stories' could be a good name. You can also combine words that create a sense of mystery and personal touch, such as 'Mystic My-Stories'.