I actually started my novel. By that I mean I started to write the story, as opposed to ideas about the story.
I started it by telling myself it was okay to write crap. Not just okay, but necessary. Everytime I cringed at the awfulness of what I was putting on the page, I shook it off, said, “that’s okay,” and kept going. Word by word, sentence by sentence. It was painful, but still I did it, and then afterwards, I felt better about myself. Even “good”.
I wrote three pages of dialogue, description, action and exposition. Wow. I forgot I knew that. The components of a story. I used to teach creative writing to teenagers, and you have to break things down to the elements when you teach kids. Adults need that too, sometimes. It helps to pinpoint what things are made of, because then you can consciously craft your work, and not just go on instinct.
Although instinct is good, too. It can get you very far. And dependinig upon your purpose in your art, it may be all you need.
Ofcourse, instinct or craft, the only way to get anything done is to just do it, despite all the things getting in your away. Apply butt to chair and create.