I don't think relying to this guide is a good idea at all. You won't learn anything from there and you'll always rely with this guide forever because you don't know how to do it by yourself. It's true that if you can follow other people advice for your own research so you can be more careful to invest next time, but I'd assume this one is just blindly follow the guide and call it a day. Might as well do DCA and learn to trade by the meantime, it's much better if you have little to no knowledge in investing Bitcoin.