Down on (one's) luck phrase informal
Having a period of misfortune
There are some moments you will be down on your luck in life, but just keep your chin up and look on the bright side.
She found herself down on her luck since she moved to her new apartment.
Jeny complains that she is really down on her luck recently. She got fired and got trouble paying tuition fee for her kids.
If someone is fucked by the fickle finger of fate, they have gone through an unlucky situation.
No value, use, or purpose
1. Having got an unlucky outcome
2. In a hopeless situation