When I started I failed 3 and 12 very badly:<p>- I do not need positive reinforcement from others in order to be happy/effective.<p>- I handle disappointment well.<p>4 months of repeated failure and rejection has fixed that. I now handle it very well indeed, and every time I fall short it provides me with determination to carry on and do better next time.<p>I'm still pretty bad at uncertainty, but I'm working on it. It's really hard to wait for a decision - much harder than dealing with a no (or yes).<p>I think a lot of the other things on the list, you wouldn't keep your attributes for long after starting a company. The problem is that you only have so long to change yourself before you run out of time and money.