Oops, it doesn't look like 'ruin your life day' is a national day..

Other days

cursing

Cursing Day
lisp

Lisp Day
ruby

Ruby Day
nail polish

Nail Polish Day
frozen yogurt

Frozen Yogurt Day
bubble bath

Bubble Bath Day
ride the wind

Ride The Wind Day
offer

Offer Day
healing

Healing Day
believe

Believe Day