Boo Hoo And More Sobbing

I am in a writing slump. I've written two kids books and cannot get anyone to take a serious look at them. I just LOVE the rejection letters. They always sound so upbeat about telling you your work sucks. OK. I know my work sucks. I've got dozens of letters to prove it. How do I make it better? That is what I really want to know. That and how do I continue to look at the poor bedraggled thing and still love it myself? Oh for a writing miracle. I see successful people out there who write really funny interesting words and create the most fabulous worlds. I know I can do that as well but I cannot seem to get anyone else to believe in me enough to read beyond my first name. Maybe I'm going about it all wrong. I have done my research and I only send to people who say they are accepting work in my particular genre. Still, it is the perfectly formed 'this is crap' letter I get back. I bow to the expertise and will retire the piece. I still think it's a great story but no one else seems to. Now I'm at loose ends. What to write? I start a million times and always the paper crumples, the delete button is hit. I've lost my confidence that there is a good story in the brain somewhere. Ideas I have, stories elude me. Now what? I read websites from authors that decide one day to quit their job and presto they're a published author. What the hell? I work my butt off and no one even looks my way. I conclude I am not a good writer. And yet ... I don't truly believe that. I know I can write. I know I can tell a good story. I've been doing it all my life. So, why won't anyone listen? Maybe I haven't put the words together the way the reader wants to see them. Maybe I need someone to take a chance and read my work. Tell me where to make it better and give me a hint on how. I'm lost and looking for direction. Isn't there anyone out there who knows how to write that can give me pointers? Let me know, I'll be waiting.