Before you spend any money, PLEASE do a lot of research about the demand, competition, in your area so you go into this with eyes wide open. Have no experience with either course you mentioned, but both have their advocates. However, you have already taken one course and this IS a job where you can earn while you learn.
We were all new once. The most comprehensive learning experience is to READ the forums...and that's free for the doing. More important is to figure out what fee is profitable for every city, county, zip you are willing to serve before you find yourself working at little or no profit. Never, ever put yourself in the bargain bin.