It is hard to see hours, months or even years of your hard work dismissed by a cruel word or unthinking comment. It is harder when the critic has thought long and hard and still sees no good in what you have done. Apparently Thomas Hardy was so upset by the harsh comments about Jude the Obscure that he determined not to write another novel.
It is an ill wind that brings no one any good and, to my mind, this set one of my all time literary heroes on a course to write some of his best poetry.
Sensitive beings as we writers are it is perhaps best to swallow the pain of cruel criticism and keep on writing, hoping that some of what we produce will give thoughtful pleasure to at least a few like minded souls.