Mistake that won't let you sleep

When the sun goes down
When the Stars come out
Someone lies on his bed faced down
And from his eyes the tears come out

He's not crying because he's sad
He's crying because he's angry on himself

He smiles remembering
All the good moments of his life
And suddenly starts crying remembering
All of his dreams that broke

He's not angry from anyone else
For hurting him
He's just angry from himself
For all the mistakes he made