Definition of it's (or that's) the story of one's life in English:

it's (or that's) the story of one's life

phrase

informal
  • Used as a resigned acknowledgement that one has experienced a particular misfortune too often.

    ‘‘He's more likely to have run off with a dancer,’ Laura said bitterly. ‘It's the story of my life.’’
    • ‘I was running a little late, but then that's the story of my life.’
    • ‘I guess it's the story of my life, I'm always letting down people.’
    • ‘But that's the story of my life - missed opportunities and bad timing.’
    • ‘He didn't want to, and that's the story of my life.’