What to study for a bright career?

What to study for a bright career?
Among the highest income earners are Lawyers, Medical Doctors, Judges, Accountants, and Business owners.If you are unable to achieve a high level degree in university, then you have to look into what fields of work are stable in an economic downturn, which professions or trades have their workers stay employed until retirement.It is possible to go around your city or town and find out what type of work a person does who is able to drive around town in a very expensive car. Some people's cars cost as much as other people's houses.The computer software development and the technology sector in general, I have found, is unstable during economic cycles. I have determined the reason for this is that businesses and governments during a downturn curtail work in software to a large extent.However, even during a downturn, people must eat, use energy to cook their food, drive to the grocery store, keep a roof over their head, pay for heat / electricity, visit the doctor or hospital or drug store to buy medicine, and so on--the necessities of life. It would therefore be useful to involve yourself in some necessity of life that does not go away during an economic downturn.Another way to look at things is to always be able to feed your family by being self reliant, growing your own food, pumping your own water, and generating your own electricity.