Build a prototype and then take 2 weeks off. You need those 2 weeks to talk to prospects, see people, and launch.
I thought I needed time off to focus on building Wormhole[1], but actually I'm needing much more time to talk to customers and on-board them. Apart from documentation and lots of feedback to work with.
Now I need the time to work on that feedback, prioritise backlog, keep bringing in users and finally converting some of the users into customers :)