You build on failure. You use it as a stepping stone. Close the door on the past. You don't try to forget the mistakes, but you don't dwell on it. You don't let it have any of your energy, or any of your time, or any of your space. Johnny Cash For the past 30 years I’ve been doing retail redevelopment - fixing up compromised buildings to accommodate shops, entertainment, and restaurants. But as a precursor to finding product market fit (for my career), one of my many jobs was as a short order line cook.