When I had a job, it was easy to know how much work to do in a day: somewhere between as much as I could, and as little as I could without someone calling me out on it.

Now I’m my own employer, and that clear standard for “a respectable day’s work” is gone. I’m constantly negotiating with myself over how hard to work, when to tackle the trickiest tasks, and when to take time off.

I realize that many people, both employees and self-employees, don’t have this problem. They work as hard as they reasonably can every day. These people get a lot done, and face problems of burnout and obsession, rather than lack of productivity.

This article is not for them. It’s for those of you who perpetually struggle to get the important things done, especially when there’s flexibility in what and how much you do on a given day: entrepreneurs, novelists, inventors, or really anybody aspiring towards something that may or may not happen.