You young writers don’t know how good you have it. My first attempt at selling a novel (1963) was frustrating. It had taken me three months of one finger at a time typing to turn my hand written prose into an over two hundred page novel.
The publisher liked it, but wanted some changes in the second chapter. This meant that I had to retype from that chapter on. I was teaching full time, had a second job, and was raising a house full of kids. I wouldn’t have to wait until the next summer to have even a smattering of time.
A few years ago a book I had completed needed some revisions and in a few day it was completed. Thank God for technology. Although when I have accidentally deleted articles (even an entire book),panic ensued. My take on that though is that I tend to believe rewriting it usually makes it better. (I’m excellent at rationalizing anything!)