Hi Cleo.
Just wanted to respond to you and say that I appreciate that feeling of dread and fatique with drawing. It has happened to me, too, and I think it relates to feeling it's a performance thing rather than just sitting and relaxing. It's easier for me when I can feel the the sensation of the pencil lead on the paper and feel the flow in the little marks. I'm way behind in the course as I had been traveling. Just catching up. Hope the drawing feels easier to you by now.