It's an easy path to fall down. I went from taking no days off in three years and working every holiday to taking three weeks off in a year because I "wasn't feeling well" (depressed). This is way too relatable.
In my 3 years at my current school I never took a day off. Never got sick. Now I skip a lot of mondays and Thursdays because I just fucking can't cope with those days. The Math and IT classes are too much and I just run away. I dread thinking of these days.
My teacher and classmates even noticed how someone like me suddenly has "headaches" or "stomachaches" every now and then. My future is fucked.
Rereading this and seeing her past-self give her words of encouragement makes me feel nice inside. I think reading this the first time, I was too focused on the depressive side of it I forgot to pay attention to nice moments as well.