9 people out of 10 are lousy at picking stocks -- and includes me. Believe me, I tried. But I DO know about investing and that has paid off very nicely. I became a stock broker and did that for 28 years before I retired to do what I love most, which is photography.
But the secret to earning a living as a broker is having a broad knowledge of EVERYTHING and being able to explain things to others. The difficulty is that, in the beginning, you have nobody to talk to and no track record to brag about. And, secondly, it's probably more difficult to start today than it was when I started. I cold-called my brains out for two years, all the while picking up accounts from other neophyte brokers who washed out of the business. It's tough.
Probably the best way to build a business in investing is to be a joiner. You have to have people to talk to and you can best find them by being active in social, political, religious, sports and leisure groups. And you can best prepare yourself to become someone people turn to for advice by knowing as much history, economics and psychology as possible.
So, it's a great way to make a terrific living but a really difficult business to get a start in. My advice is to get a liberal arts college degree. It doesn't make much difference what your major is. Learn everything you can about as many things as you can, join everything, be helpful to as many people as you can and then get a job as a broker. Look at the Edward Jones company. I never worked for them but I think they do things right.
Let me know if I can help in the future.