Living last day on earth

I've got a habit
Like an evil twin
Sneaks around and does me in
Like a secret gone unkept
I get around so I can forget
All about you

Living like today's going to be the last day on earth
You know it's not going to be
But you live like it anyway
Living like today's going to be the last day on earth

I've got a sweet tooth cavity
A place inside I fill with gravity
I got a bad knee and I need a crutch
Sometimes it feels like I live too much
To forget about you