Hard As Nails

Everywhere it feels like people are as hard as nails. There is this shiny, cold metal exterior gaurding people's true feelings: worries, joys, anger, comfort and tears, what are people trying to hide? My insides feel like wet paper mache, like I could stick to anything at any moment... but then I also become hard. I know kindness is all around me but why do I feel points and receive only bruises? Do I do the same to other's?