I think the point about staying trim and having a decent job is a good one. At 30 tbh your at the ideal age.
You have a huge range of birds to choose from, from the 20 year old to the 35 year old. The key is meeting these people....
Right, first up and going back to the first point, looking good, ALWAYS have smart clothes, clean shaved, good hair cut and smelling nice. I would also strongly suggest you take a good look at your teeth, women look at teeth and shoes, make sure both are as good as possible.
Be nice and smiley to every bird you meet, not overly, just confident and cheery. You may end up running into them from time to time, and a happy personality and smart dress makes for someone they will be more willing to talk to.
Next up - NEVER blank people, you may have mates of mates, or minker birds you know, if you see them,chat to them SO many times I have met women through a friend of a friend etc - more chance of doors opening if you chat to more people.
so many people are single and are crying out to meet a partner, but everyones is a little nervy, so you just have to be a confident happy person that people feel at ease around.
If you tend to meet no one day to day, then don't shy away from singles clubs, my sister does it, 10 - 20 people men and women go off on rambles, meals out, bowling etc etc - now you might not meet your partner on them, but you may make new friends, who introduce you to their friends, family etc, and you never know, your new mates cousin, sister, sisters mate etc etc may be the one!!
As said, it is about getting a larger cirlce of friends, meeting more people and having a relaxed happy attitude that makes people feel at ease.
Then you can get into a relationship and a year on the sex will be less frantic, the maoning more regular and you'll be saying to your single mates " I envie you, go out when you want etc etc"