My fears about writing begin with the first draft. Like a student who thinks, "My teacher will hate this." I think, "My editor won't buy this." But is this the time to be thinking that way? This is the first draft. Teacher nor editor will see the story yet. This is the time to create not to panic.
To stop my super-critical internal editor I pretend that a monkey is my real editor. I blind fold her eyes. I also cover her ears because I read aloud everything I write. I also have a Lego doll that I call Dr. Speller. Dr. Speller sleeps throughout my first draft. If something negative still comes to my mind I put it in brackets. [This is stupid.] In other words, I write everything that comes to my mind. Because, if I stop writing, my brain freezes.
In my second draft the brackets are deleted. In the third draft I wake up Dr. Speller. The monkey stays blindfolded until I feel the story is as good as I can make it. I read it aloud for the monkey to hear it. Tweak it here and there, and off it goes to the real editor.
It still comes back bloody with corrections and suggestions in red ink. But the editor likes it and buys it.