Thanks @jerrybanfield, this is the BEST piece of advice I have seen on the subject. I learned a great deal I didn't know. I, too, sell a course on cryptocurrency trading on Thinkific and it is doing very well (it's called "How To Buy Bitcoins, Ethereum, Cryptocurrencies & ICOs, Profitably, Fast & Safe, With The AA+DCA+R Method, Investing As Little As $10 A Week", see it here http://courses.miraclesfor.me/courses/how-to-buy-bitcoins-ethereum-cryptocurrencies-aa-dca-r/), so I do vouch for your information. Thanks again!