If you take into account trading costs, you'll probably lose money this way even if the theory is correct.
There are enough actors out there trying to develop complex algorithms to find an edge, and so there wouldn't be any simple edges like this left anywhere as they would be arbitraged away.
If there is a simple pattern, it is noticed and traded until the pattern disappears.
E.g. something like selling 0dte options sufficiently out of money might seem like a free money hack, but once something unexpected happens you are down to just "who could have possibly foreseen that event to occur, my decision making was solid.".
A number of failed finance companies have the story: find a legitimate arbitrage opportunity; take on a billion dollars in investment to exploit the opportunity; make bank; other people discover your arbitrage opportunity and jump on; stop making bank; try riskier and riskier investment opportunities to keep it going; engage in outright fraud to keep it going; go bankrupt and/or to jail.
You also have to take into account transaction fees and broker spread. (If you get a great deal on one of these, check the other very carefully!) I'd be quite surprised if the edge on your system is enough to cover those.