This is an opportune time for some self-reflection.

What is your seated posture like?  Are you relaxed and comfortable, using ergonomically correct seating that fosters healthy back care? Here's an interesting article on posture: https://posturegeek.com/blog/good-drawing-posture/

Or are you hunched over your work, your drawing implement cramped in your hand?

One of the fascinating elements of reviewing work from a distance is that we can often "see" the posture of the student in the work.  At times, illustrations can appear as if the hand is tight, not loose...and that the artist is, in a word, not enjoying him- or herself.  Check yourself: are you taking this one step at a time, or are you expecting much more achievement than is realistic? 

Is it relaxing, or stressful?

An artist measures a model of the human body from a distance with one eye shut
Wellcome Collection