Actually, there are elements of the freelance life in existing courses: I’ve been booked to talk to students about writing for a living. But The Freelancer website’s Danielle Corcione has written a funny, incisive and rather smart prospectus for a proper course. It begins with a module on Self-Care for Emotionally Unstable Writers before it goes into practical issues of money.
Have a read. By the end, you’d sign up for this course if she ever really ran it.