Oh, nice! You got a 3 year straight win. Nicely done. Any pointers for us just starting?
The main piece of advice I have is to don't overthink it. Your writing isn't going to be perfect the first time out. In fact, it's probably going to stink. But that's OK. At this point, you're just generating the raw material. You don't like what you just wrote? Big deal - shrug it off and keep writing. You'll have the chance to revise and rewrite that portion when you get to the editing stage.
I view this kind of like sculpting. You have the potential to make something truly wonderful. But first, you need to start with a big, ugly lump of stone. That's what your 50,000+ novel is going to be at the end of November - that block of stone. It may not look like much... but you need to have that block of stone if you're going to shape it into something that you want to proudly show others.
Just keep writing. To meet the goal, you have to write about 1,700 words a day - which isn't too much, really. But push yourself, especially towards the beginning of the month. You'll find that real life tends to interfere - especially around Thanksgiving - so try to keep ahead of the daily goal as much as you can, when you can.
And finally, if you run out of things to say or have writer's block, just splash something random on the page and then determine how your characters will respond. One of my favorites is "And then ninjas attacked." It may not make any sense int he context of what you're writing (and you may want to vary it depending on what you're writing. For example, if you're writing a sci-fi, "Suddenly, with a crunch, the warp drive fell off and spun away into space.") But the approach will help you get closer to your 50,000 word goal and maybe make things more interesting to the overall novel.