I've made an awful blunder.
我做了一件大错特错的事。
And so I say, when I see you with anything on your mind, that I feel quite sorry you haven't got somebody better about you than a blundering young rough-and-tough boy like me, uncle, but hasn't got the way.
所以我说,当我看到你有什么心事的时候,我就感到非常难受,除了我这样常常出乱子的粗鲁小伙子之外,你跟前就没有一个更好的人了。