Steven Covey calls it beginning with the end in mind. It's a principle that echos through time, cultures and disciplines... Edison, Carver, Ford, Eeminem, Lady Gaga, The Cohen Brothers, Tyler Perry...maybe even you.
A friend of mine used to say, be careful of what you wish for - you always get what you want.
So, if you were to go for "it", when "it" was done; keeping in mind that finished is way better than perfect: What's different?
Is that what you want?
Try this and let me know if it was helpful.
Your comments are a welcome signal that somebody's there and I thank you in advance.