Working Not Enough?

Working in my coaching business to sign my first paying clients.
I have scheduled tasks to work on my business.
But I feel like I should be working more hours or I should keep working until I sign the client.
So I still feel kind of I should be working even after I have finished my work.

I hear the story of Stacey where she said she used to drive 6 hours to work and then build her coaching business. I feel like I should also work longer hours or keep working hard until I get the result.

How do I know if I am working enough or working efficiently to create the result I am looking for.