No, I don't think this "foucusing on yourself has anything to do with it. This goes along with the folks who say love comes along when you least expect it, because they just want you to give up so we don't have to hear you complain. Nothing wrong about working on yourself, but that won't get you any dates. To "meet people organically" you need to do so by going out and actually meeting people. Keep working on the gym angle, there are a lot of good fish in that pond, but you have to be more aggressive. There is no reason why you couldn't have a goal of at least talking to someone every time you go.