I'll assume that's a real story (because why not?), and somewhat echo nkohari: This is not the end of the world. Companies rise and fall. People who work for startups do (and should) know the risk and life-to-death ratios involved. A startup has more chance of failing than making it, statistically. As long as you tried and did you best, you can only learn from the experience and move on to implement that learning in your next adventure.