On Doubt and Bad Reviews

Doubt is easy. You welcome it, your old friend.
Poet Edward Field told a bunch of kids,
Invite it in, feed it a good dinner, give it a place to sleep
on the couch.  Don’t make it too comfortable or
it might never leave.  When it goes away, say okay, I’ll see you
again later. Don’t fear. Don’t give it your notebook.

As for bad reviews, sure. William Stafford advised no credence to
praise or blame. Just steady on. 
Once a man named Paul called me “a kid.” I liked kids 
but I knew he meant it as an insult.  Anyway, I was a kid. 
I guess he was saying, why should we listen to kids? 
A newspaper described a woman named Frieda being asked 
if “I was serious” and “she whistled.” What did that mean?
How do you interpret a whistle? This was one thing that bothered me. 
And where did Frieda ever go?