I agree with all those habits, but would add another to make a baker’s dozen. It is the one that I most frequently tell folks who ask me how they can get published:
Don’t write to get published. Write because you must. Twisting Jer. 20:9 to serve my purposes, write because you can’t hold it in!
Source:
https://www.chronicle.com/article/The-Habits-of-Highly/150053