you wont make a living at it; like what they have lied about in the television shows. However, one quote from the show is true, you could walk out of the woods with 5 grand in a few hours, but this is not for the weak willed, and besides a lifetime of experience hunting an elusive plant it will still take as much luck.
if I had known what i do now when I started out. I would say research research research, and everything you read take with a grain of salt, there is any many deceptions as there are truths when googling how to find it.
the best advice I can give. scout and good weeds are your friends. dont be fooled by fools sang, it happens to everyone by the way so dont feel to ashamed if you do. Dig anything you have a market for. when your out trying to find a buyer for ginseng ask about other roots. ie Cohosh, bloodroot, goldenseal, soloman's seal. most if not all require atleast two habitat requirements ginseng needs to grow. you wont always find a patch nearr a blood root patch, but your atleast looking in a potential location.