Writing a fantasy book (or a series) is, first and foremost, about getting the words onto the paper. You have to get the story out of your head so that you can put it into the forge and start refining it later—with editing that happens later. So, to start, you have to learn what sort of errors should be left behind for the sake of speed. Coming to terms with red lines is part of writing fiction.
Leave spelling errors. There is no time to stop and correct little errors left behind by a messy keystroke. Those have to be fixed in your preferred editing time.
Leave changes in character names. In fact, I would say, embrace a new spelling if you keep spelling a name wrong because one comes to mind faster and sounds better. Maybe the name should be changed!
Leave changes in location names. Most place names are developed over time—and when the name of a place evolves through your story, it can gather multiple time-worn names that fit it well. This evolution makes a more realistic, more lovable name.
I remember reading Wayne Thomas Batson saying that he leaves behind spelling errors when he’s writing and thinking that that was impossible for me. Maybe that’s where you’re at, but, with time, learning to leave behind the small things for the sake of the big is a skill that you can learn.
Editing can be done at the end of the day—but while the words are flowing, let them flow.
I love Wayne Thomas Batson (or at least The Door Within Trilogy!)
Hope your tip helps!
LOL I know people who have both skills, they are geniuses! All I can do with music is listen to it and change the lyrics sometimes (or translate them). But I'm sure I wouldn't trade my ability to write for music, instead I would seek to learn musical skills. We have a lifetime for it! Who says we can't be both at the same time?