Good startups usually take 10 years.
Most startups are not nearly focussed enough. They work hard...maybe, but they don't work hard on the right things.
You have to let your team get all the credit for all the good stuff that happens, and you take responsibility for the bad stuff.
One thing that founders always underestimate is how hard it is to recruit.
You want to sound crazy, but you want to actually be right.
The best source by far for hiring is people that you already know and people that other employees in the company already know.