A mistake happens once

Look at who i am
Look at who i want to be
I'm a demon, a devil
A monster in the sea

My intentions are good
And my love always sings
But my actions have long
Lost their beautiful wings

A mistake happens once
I happen more
I'm like the fist
that strikes what is sore

You say that I'm wrong
But i always will fear
That my actions will
Bring forth a river of tears