( informal ) when you say that's the story of my life about an unfortunate experience you have had, you mean you have had many similar experiences
THAT'S THE STORY OF MY LIFE
Meaning of THAT'S THE STORY OF MY LIFE in English
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005