(Thanks to the New Yorker)
All writers--fiction and nonfiction--crave to hear this. There are other ends to writing but getting approval is a major one. It's obvious really as most writing is for an audience. Even "secret" writing is now done via blogs and tweets, so diaries are wide open. A bad review or, worse, a rejection go right to the heart of one's being.
We are simple and gullible beings. These things never get better no matter how many times you do it.