Do you have an actual, verifiable track record of this? Lots and lots of people "feel like" their methods are successful - at least until they actually record all the results. Nearly 100% of the time, the harsh bright light of reality turns those successes into failures.
If you find that you have a method that actually has positive returns and is scalable, I can't imagine why you'd want to sell it. If it sounds like it would be successful, but is not for a variety of more or less subtle reasons - well, there's a lot of guys on YouTube selling lots of variations of those.