For a lot of people who can't find their perfect someone, it has more to do with who they are dating than just not finding the right person. A lot of people tend to find future prospects in the same pond, and they wonder why that pond always seems to warrant the same type of partner. Meanwhile, they are oblivious to every other pond that exists around them.

I've met so many women over the years who are intent on finding that one person so that they are always on the prowl. As I'm sure others will point out, the best move quite often is to take a step back and just explore life (letting relationships come along as they would do naturally instead of trying to pursue them). The other option is to be the seeker rather than the pursued, so that you can target the person you have researched and realize might be the right, future prospect. Many women won't ever even approach a potential suitor, convinced that he has to make the first move (so they retire with their cats and wonder why they were never good enough).

Either way, good luck to you.