Do you have only one source of income? Then you might be always worried about it. The sole source of income for many people is their jobs, that is why when they get fired, they will just often blame the economy, the government, the company and even the weather. They feel like they are entitled to their jobs that is why when they 'lose' it, it's the end of the world for them. They have a false sense of security, they really think that they own their jobs, but the truth is, their jobs own them.
What if you have multiple sources of income? Then, you would not worry too much about your job because you have other sources of money. You would not complain too much about the government, the company or even about your genes. So what are you waiting for, start building multiple sources of income.