Therapy helped. I learned to recognize the signals I need rest--and to allow myself to do so. Counterintuitively, I experienced a net increase in quality output once I got better at it.

Anxiety stems from thoughts of the future. The ideal version of ourselves we create, inhabits the future; it's, by design, unapproachable. And tyrannical. Always reminding us that we "should" be doing this or that.

Find fulfillment in doing that which you succeed in DOING. It's enough. Beating yourself up over the inverse--the imagined, endless possibilities--is not useful.