Draw only what you enjoy. If you find yourself just dragging yourself through a drawing, either you’re tired (take a break) or you’re not drawing things you enjoy.
If you enjoy the drawing, others will, too.
If you draw as if it’s a chore, the work will be as a chore to those who see it.
(This is not an excuse to stop drawing, however, unless it’s for true rest. Draw as if it’s a chore when you’re warming up, then draw only what you enjoy.)