Michael Phelps started swimming when he was seven, partly to release some of the energy he had after being diagnosed with ADHD. He was obviously a fast and competent swimmer - but that's not the end of the story.
If he'd never learnt to do racing turns, control his breathing, improve his stroke - he wouldn't have won one medal - let alone 22 Olympic ones.
And what does this have to do with writing? For some reason writers are assumed to drop, fully-formed, into a sea of creativity and just swim. They either have talent and float, or none and sink.
Nothing could be further than the truth. Writing is a craft, and you can take lessons and learn tips to get your craft smoother. There isn't anyone whose writing can't be improved.
What you can't teach is 'voice' - the unique flavour of someone's writing - their authorly fingerprint - but sometimes that voice is drowned out by a myriad of small errors, and the writer needs help.
There is an ongoing debate as to whether editorial services are benefitting authors or exploiting them (see this opinion piece in The Bookseller - and my reply on my own blog here) and I come firmly down on the side of benefit.
If you've employed someone to help with your writing - have you found it helpful? How long have you been writing for - has your writing improved in that time?