This project has been a roller coaster of emotions. At one point I thought about just shelving it all together, but I decided to push forward.
In 90 days this book on Ruby on Rails as made $10K in revenue.
If you have doubts about your project, or on the verge of quitting, don't! You could be so close. There's always going to be friction with whatever you're pursuing, but the key is determining what's worth fighting for.