If you don't have integrity, you have nothing. You can't buy it. You can have all the money in the world, but if you are not a moral and ethical person, you really have nothing.
As I said there is nothing wrong with failing. Pick yourself up and try it again. You never are going to know how good you really are until you go out and face failure.
If you build that foundation, both the moral and the ethical foundation, as well as the business foundation, and the experience foundation, then the building won't crumble.
I was an economics major in college, and every summer after school, I would drive my car from California, from Claremont men's college at the time, to New York. And I worked on Wall Street.