I spent 35 years in engineering design. There were very few engineers (I never met one but I suppose there might have been one someplace, or at least one that thought he was one), including me, that got everything write the first time. Revision is part of the creative process. Writers who say they don't revise, revise in their heads before they write. Nobody, repeat nobody, has continuous 90K word streams of perfect thoughts that can't be improved. Doesn't happen.
When I first started writing fiction, Fan Fiction, a reader, retired professional editor, took pity on me and offered to beta read my stories. I accepted.
The first chapter she sent back, an MS-WORD file with track changes turned on, had doubled in size. That was after extensive editing on my part. I was shocked. She was kind enough to put in notes about why she made her comments. If it could be done wrong, I did it. At that point I realized how lucky I was.
She was shocked in turn that I accepted her input and didn't let my ego get in the way of my learning process.
Not long ago I sent her a chapter of my novel. It only had about fifteen comments in it. I was thrilled.
That said, my first drafts still get major revisions. I don't turn on change tracking when I do them because it's too discouraging!
It will get better. But it doesn't have to. The only thing that matters, to me at least, is the finished product.
Fitch