Hustle is a burst. It gets you through a launch week or a big pitch, and then it's gone — because willpower is a limited resource that depletes with use, not a personality trait some people have more of.
What actually moves a business forward over months, not days, is structure: a weekly rhythm you don't have to negotiate with yourself about, decisions you've pre-made so you're not re-deciding them daily, and a short list of the few things that actually grow the business versus the many things that just feel productive.
If you find yourself relying on motivation to get basic things done, that's not a discipline problem — it's a design problem. Fix the system, and you'll need a lot less hustle to get the same results.