Long nights and what I used to call "weekends" allowed me to (with help from some experienced developers) create and launch the initial MVP of SalesHud.
Shortly after listing on the Chrome Webstore, we'd already started seeing a few installs.
I feel like I knew it would work, but it was still a shock seeing the first initial Slack alert for a user install (I hadn't spend a penny on marketing) and build just a single page website using the amazing carrd.co.
It was a steep learning curve, and these initial users weren't without their fair share of teething problems, but they were super helpful in providing feedback and helping to get a more stable version out of the door quickly.
If any of you are reading, THANK YOU SO MUCH!