Well, trading can be profitable no matter what strategy you have used but the question is if that really works on you? Perhaps, you could listen to them and have this as an inspiration to learn about trading but never expect that it has the same results when you do this. You need to choose coins that have a huge market trade volume like BTC or BNB for easy management. But what I said, the results will depend on how you perform, not just because you have this strategy.