Worried ...

A worried man with a worried mind
No one in front of me and nothing behind
Some things are too hot to touch
The human mind can only stand so much
You can’t win with a losing hand

- Bob Dylan, Things Have Changed

Doubt ...

When you want it the most
And there's no easy way out
When you're ready to go
And your heart's left in doubt
Don't give up on your faith
Love comes to those who believe it
And that's the way it is

- That's the way it is, Celine Dion