Oops, it doesn't look like 'shamila day' is a national day..

Other days

kiss a ginger

Kiss A Ginger Day
blanket fort

Blanket Fort Day
buddy

Buddy Day
cat girl

Cat Girl Day
youth

Youth Day
mean girls

Mean Girls Day
lisp

Lisp Day
pick me

Pick Me Day
eat what you want

Eat What You Want Day
hoodie

Hoodie Day