I have been working on my MS for over a year now. I have written, rewritten, revised, edited, added punctuation marks, removed punctuation marks, and returned deleted punctuation marks to their proper places. I have taken a series of unconnected occurrences written out of order and put them into a semblance of plot. I added chapters, removed scenes, had characters misbehave and come out the better for it. I have read through the whole thing four separate times, and had CPs on it twice (getting ready for a third time).
I hope to start querying soon, and I'm really worried about that. I even considered skipping the whole process and just self publishing, but my reasons all boiled down to me being afraid of the inevitable rejections. And I know I'll get a ton of rejections, because I know writing a successful query will be just as hard as writing the novel. I technically know what a query letter is, and what it's supposed to look like, but applying that to my novel is really hard.
Last week I discovered Query Shark. I don't know why it took me so long to find this site, but it has been a revelation. Anyone looking to query, or wondering why they keep getting rejected, should probably stop by and read a few of the critiques. I have already learned a lot, I just haven't figured out how to make it work for me yet.