story of my life, that's the

that’s the ˌstory of my ˈlife

(informal) used for saying that something that happens to you or to another person is typical of the bad luck you always have: ‘I meet somebody I really like and she tells me she’s married. That’s the story of my life!’
See also: life, of, story

story of my life, that's the

Describing something that summarizes one’s own experience. Usually said about a difficulty, setback, or disappointment of some kind, this expression is generally stated ruefully, and with either exasperation or resignation. It dates from the second half of the twentieth century. The humor magazine Punch used it on March 11, 1964: “It’s the story of my life—looking for small watch-straps.”
See also: of, story