I still get affected by some criticisms from my boss and I'm the editor of a well-regarded online niche publication. It's natural to feel bad in those situations, but you just have to dust yourself off and get back into the game. While you're getting up and dusting off, however, do a bit of thinking about whether the criticisms are valid. Such self-assessment is critical, I believe, to improving as a writer -- and really to improving in general.
I'm happy to consider their feedback/criticisms. It's just that I don't get any. I get no response at all or a form. That's the problem. I really do want to know what their criticisms are so that I can address them. But no one gives me any feedback. I'm just knocking around the in dark.