Oops, it doesn't look like 'shutdown of valentines day' is a national day..

Other days

promposal

Promposal Day
tell a fairytale

Tell A Fairytale Day
pick me

Pick Me Day
buddy

Buddy Day
self appreciation

Self Appreciation Day
singles

Singles Day
mean girls

Mean Girls Day
polyamory

Polyamory Day
blanket fort

Blanket Fort Day
self care

Self Care Day