Indeed, success is 10% vision/inspiration, 10% skill/talent and 80% discipline. You've gotta show up and do what needs to get done, regardless of your want to do that. That goes double for your own personal projects as as it does for your J.O.B.
It's harder to drive yourself to the finish line than it is to drive projects for an employer. I can't speak for everyone else, but for me at least, I have zero sense of obligation to myself - if I ditch a personal project because I lose interest or because I find a better solution or just because I don't feel like it, my reputation isn't at stake. It's easy to walk away from and leave it on a shelf gathering dust with few (if any) consequences; whereas I feel a deep sense of obligation to see paid projects through to the bitter end, however bitter that may be. You don't want to damage your reputation for delivering on your promises. This is a constant struggle in my life.
