bungler

Miserable bungler that I am, I have been trying to make matters better, and I have made them a thousand times worse!

A profound and sure affection, which I was foolish enough to allow to be lost to me, like the bungler I am.

You will confer a great favor on me, for I am still rather a bungler in business, and but for you I should often be embarrassed.

Whereas the bungler is probably far more deranged than the man who does the job properly.

And the words were no sooner out of his mouth than Richard cursed himself for a bungler, and a slightly vulgar one at that.