Interesting, I've also experienced obstacles in writing as if I had to write as well as possible to start writing, and often I forgot about editing.
It's like, have an idea, writes it down and forget it, even though it's not at all good for the creative writing process as you stated above, editing is a must, thank you for this reminder post.
You are most welcome mate. Everytime you feel stuck writing down your thoughts, take a small break, come back and write everything down that comes to your mind without caring about the quality. That can be edited and polished later. Cheers!