I will do research on how Friday the 13th was bad luck, but I think it's time to let go of such stupid belief. The notoriety of Friday the 13th was such that a horror franchise was made from of it.
To be honest, I'm a big fan of Jason's film, and we should regard Friday the 13th as nothing more than horror pop culture. Nothing more. In fact, another Friday the 13 passed, and like many before it, nothing bad happened. And if something did happen, it is pure coincidence or just human actions. In my case, I had a great Friday the 13th. We did the usual end of the week celebration without a masked dude coming out.