Isn't that quote attributed to Truman Capote and not Hemingway?
Here's something to cheer you up:
A filmmaker/screenwriter friend of mine always writes a first draft, then locks it up in a drawer and REWRITES IT IN ITS ENTIRETY! He has done this with probably a dozen screenplays, and he says the second version is invariably much better, not even comparable to his first draft. He said that originally he would try and fuse the two drafts, taking the best of each, but he realized that he was taking so little from the original drafts that he decided that instead of locking them in a drawer he would send them to his brother with a little note:
"Read and throw out".
He could not bring himself to throw the first draft out himself, so he passed the buck and built in a three to four week delay before the point of no return. Only once did he call his brother to stop him, because he could only half remember some dialogue that he was writing into a new scene.
The one thing my friend does not know, is that his brother was reading the first drafts, and then putting them in a drawer. He told me he couldn't bring himself to throw them out either!
The point is that your second draft is going to be much better than your first, especially because you don't have it around as a point of reference.
I wish i had my friend's cojones. I rewrite my stuff (one screenplay had 10 drafts), but I could NEVER start from zero unless I had to...
Good luck!!
JBArk
EDIT: apparently there is some contention as to who the quote belongs to. One source wrote that Capote said "Writing is easy. You just sit at the typewriter & open a vein." What I had heard was that in a response to a journalist's asking what his process was, Capote responded that he sat at the typewriter in front of the blank page until his forehead started sweating blood. I think I'll stick with my version - it's more graphic!

JBArk is a Mandelthought; a non-fiction character in a drama of his own design he calls "LIFE" who partakes in consciousness expanding activities and substances; he should in no way be confused with SWIM, who is an eminently data-mineable and prolific character who has somehow convinced himself the target he wears on his forehead is actually a shield.