Fifteen years ago I thought editing was checking for spelling mistakes. In reality when we sit down to write it's with an idea. We jump in happy and excited. A few problems surface, maybe a few doubts. But we plough on.
What we have at the end is not a first draft, it's a zero draft. It is all our thoughts and feeling poured onto the page.
Revision makes you a better writer. After each session you learn more. I hope I have given you a few tools to help with that progress.
I am finishing this challenge with a quote from David Eddings,
"Keep working. Keep trying. Keep believing. You still might not make it, but at least you gave it your best shot. If you don't have calluses on your soul, this isn't for you. Take up knitting instead."