a great example is baccarat banker has a 4% positive edge until you add the -5% commission then its -1%. people should play banker at baccarat just to see how much 1% really is
playing poker at a table in a casino with a 12 % + rakeback is negative sum game LOL unless when you sit at the table there's people that are new and dont know what theyre doing then you can catch a few bucks
one thing about your results are that you have a positive delta bias in your trades , when the market went down a bit your strategy took a bigger hit than the indices. Nothing wrong with that but just something to keep in mind
I say if it breaks $20k then to the moon. But the news about Peter thiel buying a ton of bitcoin reminds me of the news of john paulson buying a ton of gold