1. Redesign Time: Count the Blocks, not the Hours
Most of us are fixated on time. "If I don't do my daily writing before 9 am, it will never happen." Or, "it's past 7 pm, so I should stop working now." Then when you're not able to stick to the arbitrary rules you've set for yourself, you feel bad about breaking them, or, on the flip-side, interrupt a perfect moment of flow just to adhere to your own rules.
Setting certain boundaries isn't a bad thing in itself. But time is a very rigid form of measurement, which allows little flexibility and doesn't take into account variables such as natural energy rhythms. We can set ourselves up for failure and anxiety by being too fixated on time alone.