Qualifications
To start, you'll need a bachelor's degree in a related field—finance, economics, business, something like that (source). It can also be in a specialty field, like computer engineering, which is a great degree to have if you're a technology investor.
Most often, you'll also need an MBA (Master of Business Administration), and many professional investors today come from the PhD programs in mathematics, statistics, and other hardcore analysis fields. Various licenses may also be required, like the Series 7 (proudly offered by Shmoop) and others (source).
Probably the only thing you won't need is a driver's license. You just sit your butt down in that office chair and get to work. We'll see you again in thirty or forty years if you live to tell about it.