I think it is about mental patients. Tiny Platic Cups are used for taking pills & medicines in hospitals.
"Let the world never see all the strange sides of me". "It's so believable" - his illusion of life seems so real.
He has all the bad side of life - "If you're drugs and alcohol, then I'll be the hangover"
Confess my sins to clowns - the doctors
"Dress up party at my house, we'll all be someone else" - they have lost their minds - they think they are other people
"I found a mistake, in the way that we were made" - problems of the brain
"We're so original" - they are unusual people - original
I think it is about mental patients. Tiny Platic Cups are used for taking pills & medicines in hospitals. "Let the world never see all the strange sides of me". "It's so believable" - his illusion of life seems so real. He has all the bad side of life - "If you're drugs and alcohol, then I'll be the hangover" Confess my sins to clowns - the doctors "Dress up party at my house, we'll all be someone else" - they have lost their minds - they think they are other people "I found a mistake, in the way that we were made" - problems of the brain "We're so original" - they are unusual people - original
IMHO