" You look like a walking disaster" , like a walking disaster.

并且：“You look like a walking disaster” ，就像一个行走的灾难。

I am a walking disaster on that front.

我在那方面完全是个灾难。

You can also say: " a mess" or: " a total disaster" , " a walking disaster" .

你也可以说：“a mess” 或：“a total disaster” ，“a walking disaster” 。