I highly recommend the book, "No Plot, No Problem", written by the founder of NaNoWriMo. If you haven't read it, it is both an outstanding book and entertaining. At least, I found it so. I do understand the intimidation factor. I suffer from it every year. Over the past four years of participation, however, I have moved closer and closer to the attitude that it just doesn't matter how many words I get in. This may not be the optimum strategy for finishing but I have found that I enjoy my work a great deal more. And each year, I find myself getting closer and closer to finishing a complete novel. YMMV, but it helps me get over my biggest hangup which is continually re-writing each sentence I put into words. Which is one of the prime roadblocks to finishing that is pointed out in the book, not surprisingly.