Be brave, get out there, and tell the world what you’re thinking—even if you aren’t yet sure about all the details.
You’re going to be asked again and again why you’re the best person (or team) to build your product, and you better have a great reason.
Most people don’t really realize just how long the hours will be and just how much your company will become an extension of yourself.
Most importantly, don’t take yourself too seriously!
(Copied from there)