stressed tired exhausted child with blue mask in a lesson. safe back to school during pandemic concept. social distancing to fight

adorable alone angry asleep back blue boy canceled child childhood classroom comfortable concept covid19 cry depressed distancing education elementary emotion exhausted expression fight flight frustration innocence kid learn learning lesson lying mask mouth napping pandemic person problem protection reading relaxation relaxing resting sad sadness safe school schoolboy sleep sleeping sleepy social stress stressed study studying tired unhappy waiting working young