My sister says the exact same thing. When I would complain about my horrible job but say I couldn't do anything else, she would say, "if you want to be shot out of a cannon for a job. You can train. Be the best in the world at being shot out of a cannon and you can make money at it." Of course she was being silly as I have no interest in the circus arts.
She makes a valid point. The opposite of find a niche and make yourself fit to fill it. Pretty much, make your own niche. My first response was always that I might fail. Then my supposedly rock solid full time government job was looking at doing large scale layoffs and then began instituting massive cuts to health insurance coverage to save money, I realized failure is possible all over. It took me a couple more years, but I quit to be retrained to do what I really want to do. I look around at the world with people with crazy degrees (digital storytelling or leisure studies) and many with no degrees at all doing interesting, fun things with their lives. I think more of what she kept telling me. There are many ways to get through life. Find what works for you, How you want to live. You don't have to be perfect. You do have to try.