If you absolutely must edit your own document, take steps to avoid pitfalls and produce acceptable work.
It’s that new gaze, unfamiliar with the material, that will find issues and help you put the final polish on
Does editing inhibit a writer’s “art”? The short answer is: no.
I’ll continue using my 15th Edition for a while yet, until I can manage to buy a copy of the 16th. It’s exciting to see the new, most up-to-date version coming out, but my faithful orange book has a lot of mileage in her yet.
If you want your information to get out there and really engage people, a good editor should not be your last resort — but your first!