be your own worst enemy
US /bi jʊər oʊn wɜrst ˈɛn.ə.mi/
UK /bi jʊər oʊn wɜrst ˈɛn.ə.mi/
1.
成为自己最大的敌人, 自作自受
to cause most of your own problems because of your attitude or behavior
:
•
He tends to be his own worst enemy, always sabotaging his chances of success.
他往往是他自己最大的敌人，总是破坏自己的成功机会。
•
If you keep procrastinating, you'll be your own worst enemy when the deadline comes.
如果你继续拖延，到截止日期时你就会成为自己最大的敌人。