Seems like all the startup stories you hear, more or less play out like Cinderella, you hear about every minute detail about preparing for launch etc, then you launch, and pretty much end up with "...and they lived happily ever after". Maybe a year down the line you hear about a new version, and a few years later you might hear about the acquisition.
So what do the founders spend their time on after they launch?(3+ months after launch). You know things besides coding new features.
After the launch is hell on earth, if you're lucky. A million things are happening at once, you find out all sorts of stuff you missed, you learn about all those bugs you didn't catch earlier, feature requests come piling in, angry or elated customers or users contact you, people get in touch about working together, deals, opportunities, possibilities, the air is pregnant with possibility, electrified like the centre of a thunderstorm, things just KEEP HAPPENING faster than you can keep up with them (you learn to prioritise real good, too), etc, etc, etc
That's if you're lucky. If you're unlucky, then you have the other kind of hell, the frozen wasteland where nothing happens and you can't make anyone care about your product no matter what you do.
I prefer the first kind.