因为我的儿子，我知道我是自己幸福的最大敌人。

Because of my son, I learned that I am the biggest enemy to my own happiness.

youdao

不幸的是，最大的敌人是我自己。

Unfortunately, I was my own worst enemy.

youdao

不幸的是，最大的敌人是我自己。

Unfortunately, I was my own worst enemy.

youdao