I took a 12 week correspondence course that seemed legitimate. it covered: budgeting, stocks, bonds, mutual funds, leveraging etc. It was informative but slanted towards investing in the stock market. There are similar courses on line associated with colleges.
After taking the course I tried stock market investing through a respected investment councellor 3 times over about 30 years, all were unsuccessful. I would have done better with investment certificates.
A friend of mine who is a retired accountant told me that over about 30 years she helped people with their accounts and,she noticed people did not make more money on the stock market than they did with secure term deposits. However she saw some people lose everything on the market.
I am a natural coward, but I have budgeted sucessfully and have been very happy investing in rental real estate.