The job of an editor is to ensure a consistent voice.
I think you must have your own office. I don't believe ever in shared office spaces.
Force yourself to simplify every initiative, every product, every marketing, everything you do.
The next thing you do is allocate resources.
The most important job of an editor is simplify, simplify simplify, and that usually means omitting things.
The companies I have traditionally seen do best over the long term had lead investors for their seed rounds