The thing about writing advice is that no writing advice works for everybody. Or even a large percentage of everybody. The "write every day" thing is like workshops, Clarion, MA degrees, how-to books, special software, etc, it is not for everyone. Nothing is. 1/-
Perfectly summarized. All brains work differently, so you have to figure out what methods and tools work for you, even if it is something not "recommended" by seasoned writers. Find out how YOU write. Your process.
As Dean Wesley Smith puts it: "Every writer is different, every project is different." All else is guidelines.
Writing is art and everyone arts differently, according to the way our brains work. One of the learning curves of writing is figuring out what works for you. Ex: I couldn't do a multi-day workshop where you have to write a story per day/week/whatever. 2/-