My first conference I experienced the same thing. I'd worked hard on children's story only to have it sliced, diced and bled upon. I sat in my room pouring over the pages, beating myself up when I realized, "Hey, I'm new at this. I'm learning." How was I to grow as a writer if every remark someone made sent me into tail spins?
That day I set some personal parameters into place and I've shared them over and over. Here's my rules on handling critiques and critique groups.
Follow these few rules on critiques and you'll walk away a happier writer. Remember, critiques are meant to help you move your work forward. Keep an open mind.