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

Other days

martini

Martini Day
hannah

Hannah Day
ponytail

Ponytail Day
lost sock memorial

Lost Sock Memorial Day
self care

Self Care Day
lash

Lash Day
youth

Youth Day
blanket fort

Blanket Fort Day
self appreciation

Self Appreciation Day
lumpy rug

Lumpy Rug Day