Yes, but keep in mind that we all have a blind spot when it comes to our own writing and we should never attempt to copy edit ourselves. This is why self-published books are so laughably full of errors, and also why the manuscripts I’ve worked on that presented the most challenges have been those with a note attached from the author: “This won’t need much work because I have [or my wife has—for some reason it’s never a husband!] already copy edited it.”