I did this activity with a class during my internship in January. I wanted to use my knowledge from my happiness teacher training, combine it with English didactics and thus bring some light into the ongoing lockdown. Of course, you can use this activity anytime. After all, self-care is not just important during the current pandemic. The students can fill it out individually, you can talk about various self-care activities in class. I used it as a post-listening task but there are so many ways to include this activity into your lessons. You could also use it to revise vocabulary e. g. on the topic of free-time activities etc. 

PS. Don't forget to fill out your own copy. After all, you cannot pour from an empty cup :)