First, let me say Blogger can be a real pain in the ass.
Second, go read this post Tamara Siler Jones made on her blog today. It's about why some writers feel the need to tear down and destroy the confidence of their compatriots. I don't understand the need but I've been treated to glimpses of such ruthlessness. It's never pretty and I'm certain it's never really necessary.
Some writers will try to say they're only trying to help, but often their help is wrapped in a surge of negative energy a paperclip could pick up on. Learning to avoid these personalities is key to survival.
If you've ever been treated to the harsh end of a pitiless critique, chin up, my friend. You're not nearly as bad as that person made you think you were. Every word you write, every sentence you compose, teaches you something more of your craft. Above all, keep writing!