jackietchr09, take care of you first. Teaching is a government job where admin lives in the present. No awards or lasting positive effects from your killing yourself to be there. And pro-tip, call out sick on a day you have to stay late when you've been putting in the hours without appreciation. Sick is sick and they can't say anything about it.
Or maybe it’s like my district. They send a mass email to all teachers telling us all the subs for x date are placed & no one else can call in sick. This is for real!