I hope you have polished your manuscript so that it shines.
I can't remember where I saw this, but it was a suggestion on how to get 7500 words written each day. You start writing at 7 a.m. and stop when you reach 500 words. Then at 9 a.m., you write another 500. Keep doing that every hour until it's 10 p.m. You should be able to reach 7500 words in that time frame. Something like that....good luck!
That's writing, though.
Much more difficult to revise. A person can write a rough draft of an average-size novel in a short period of time. But when it comes to revising, things get tricky. When writing a first draft, the writer often doesn't labor over every word. When he's revising, every word sometimes becomes a brutal minefiled of decisions. This word, that word, omit, move the word to another line, take the entire paragraph out, take the entire scene out...
It can be awful, and for me it takes me about twice as long to pick through the MS as it does to actually write it.

aaaahhh!!! I quit my job for this book!! I lost all my friends!! My highschool sweetheart says I'm "dead" to her!!! ALL OR NOTHING
AAAAAH!!! The agent rang me again this morning!!! It's only been 10 days!!! I didn't answer it!!! I feel like I'm being stalked??
What should I do??? Should I write to her??? Surely the game is up now...
I was hoping they wouldn't care that much and let me have the 3/4 weeks I needed!!!
HEEELP!!!!!
Sure it can. Break it off into chunks and deal with 6,000 words a day. You'll have a similar time crunch when it comes to publication so roll up your sleeves and get to it.Look guys,
there is no need to tell me I've been stupid. Old news that.
I submitted my QL's when my MS wasn't polished or at least even a solid first draft. Expecting to have a month at least before the agents' responses, I got a request for a full the next day. My novel is around 80,000 words and I have done 25,000 so far in, er, 7 days. The first 3 chapters (of 9) are the most difficult, apart from this huge chapter I have, chapter 4 which is around 13,000 words. Every paragraph basically needs a complete rework, apart from dialogue. I have to edit it once, I have 14 days to send it off, but I also have to read and check it again etc. By then it will be 3 weeks since the agent requested it, and I may blow my opportunity. Can it be done?