Mark, time minimizes the amount of quality candidates. With your age, you're going to land a slvt majority of the time. If you truly want to land better, you have to increase your game, even if you have a good game, you have to perfect it. The good ones aren't typically accustomed to the 'game' so you have to improvise.
Pick out the weakest part of your game, and start working on it. Most your age let their age dictate their marital status. They feel it's a race, and time is running out. Women can sense urgency, and the wrong ones seem to like it.