Though this out of control feeling is not one I relish I'm beginning to think it may be an essential part of being a writer. That fear and vulnerability add an edge of realism to our writing. I think if you allow yourself to wallow in these feelings. To explore them to their full extent then you find that emotion that is the heart of being human. When you think about it we already ostracized ourselves.
Writers are by nature observers who record the world from a distance.
But I don't believe that fear is exclusively ours and I believe that confidence in our writing is something hard to find. Hard to define and hard to put a pin on. But in our hearts I wonder if we all aren't putting our best work out there with the caution that it's only a draft. It's hard to be confident when everyone on your loop is experiencing a tight market. It's hard to be confident when the fourth book in a series you've been writing is rejected.