be (one's) own worst enemy



be (one's) own worst enemy

To do things that complicate one's life and/or keep one from success; to be self-destructive or self-sabotaging. Of course Tommy started skipping school again—he's his own worst enemy. She always sabotages a relationship when it's going really well because she's her own worst enemy.
See also: enemy, own, worst

Common Names:

NameGenderPronouncedUsage
Goretti-Various
Arrington['æriŋtən]
Amira (1)-Arabic
Lazaros-Biblical Greek
Arthit-Thai
KenelmKEN-əlmEnglish (Rare)