It sounds so, cliche right? Look at the methods, look at the methods. But why? Because the fact is, that's literally the best answer you can get. Some so call dead methods are waiting for you to add your own unique twist to make it alive again. Think of email spam for instance. It may be old and people who made millions from spamming 10 years ago may say it's dead, but people still put massive resources into running spam campaigns because it still generates $$$ to this day. Might be harder or less profitable than say 10 years ago, but it still works. My advice: pick a traffic source, whether it may be seo, YouTube or reddit and read various methods surrounding your preferred platform and try them. Forget how much time has passed and just try one and another and another, but for the same platform. For me that worked best.