"Careless" lyrics

I live so lost inside my head
And all these feelings, all my fears
So what is happening to me?
And does it's gotta be so, gotta be so,
Gotta be so much that I can't see

Now hear you shouting down the street
But I couldn't go against my dreams
So if it's carelessness we need
When then it doesn't mean so, doesn't mean so
Doesn't mean so much it's just greed

Sometimes I'm hanging about the thread
Of all those memories I shed
I live my life with no regrets
I feel so careless in my head