Writer's Fallout Shelter

Oh, I so agree here! My brother has been working on the same book for NINE YEARS for that very reason.

His problem isn't WRITING....it's FNISHING.

You should NEVER EVER EVER edit your stuff until you are completely and totally done. Even if it's a book.
Unless it's just not working with the rest of the story.
In which case, the best thing to do?
Don't go back and start editing what you've already written.
Instead, open a new document, and start over, FROM THE POINT WHERE YOU WANT TO MAKE THE CHANGE....and then keep writing.

Seriously.

That way:

Number one: You don't break the muse....because if you take the time to do that, you could concievably get so caught up in the editing that you lose the idea and direction of that idea you were making the editing changes FOR

Number two: You have, that way, two possible chapters for the same book. In the end, what if you twist the plot again and wish you still had the original chapter that you edited and changed?

The best rule of thumb is KEEP EVERYTHING UNTIL YOU ARE DONE DONE DONE and have actually sold your book, or whatever you are writing. For all you know, the editor might want you to make changes that greatly reflect your ORIGINAL ideas. If you save them, you have something to REFER to.

Hope that this helps.

Whips and Chains? Honey, I'm a Texan --- I've got SPURS.