Everyone needs an editor. Everyone makes mistakes. If you think about it you probably have a few spelling errors that are habits you’ll never correct. For me, one of these is the word “instrument.” I almost always put the u before the r and then delete it. There is an important watershed for every author when they abandon the idea that their writing is perfect. It means turning away from your ego and starting the real work. Flattering yourself feels great and justifies the laziness every author feels when they want to avoid the hard work of writing. Walk away from your ego and you’ll always find the work rewarding. No book ever got good until the second draft.