When people tell you that writing isn't a "real" job: Stay the course
When people tell you you're too old (or too young!) to start your writing career: Stay the course
When you get another rejection on that story you believe to be wonderful: Stay the course
When people tell you how incredibly difficult it is to find an agent/get a publisher/sell your book: Stay the course
When you're not sure where the story will go next and you think that everything you wrote today might just be crap: EAT ICE CREAM! WATCH A FUNNY MOVIE! GO TO BED! Then, tomorrow when you wake up: Stay the course
Add yours in the comments below!!