There are two ways to look at this:
1) Religious – It will “click” when Hashem wants it to. He chose your zivug 40 days before you were born. When you come upon her it will click. He runs the world. You just do your part. Keep dating and He will bring her to you. Hashem has a reason why you will wait however many years or months before you find her. And that reason must be for the best.
2) Rationalist – Honestly assess yourself and the women you’re seeking to date. Does who you are and who you want to be match or fit with the characteristics of the women you want to be set up with? There’s a story I tell to potential jurors when I’m picking a jury before trial… “I’m not looking for the best juror, I’m looking for the RIGHT juror. When I played football, I told the coach I wanted to try playing running back. He put his hand on my shoulder and said, ‘son, we could time your 40 with a calendar and you couldn’t catch a cold. You’re not meant to play running back. Now go over to the offensive line and learn protection.'” You may be a great guy, but not the RIGHT guy for these girls (and vice versa). Also honestly look at yourself in the mirror. Are there things YOU could improve? Get in better shape? Haircut? Better clothes? Work on your dating communication skills? Find more interesting places to go on dates?
I pray that you find your match soon and in Hashem’s time. We all look forward to a follow up post where you announce your engagement.