好自为之英语怎么说？

Take care of yourself and do your best.

照顾好自己，尽你所能干吧

Watch yourself.

你注意点，你小心点。

There is nothing we can do. You watch yourself.

我们无能为力了，你好自为之吧。

you better 你最好（做某事）

You better watch yourself.

你给我小心点，好自为之（带威胁）