Howard, you just described the majority of males since the beginning of time! Relax, take three deep breaths, sooner or later, your mate will appear to you when you least expect it.
One of my best friends fits your description of yourself exactly, and try as he did, he never had luck.....until a year or so ago, when he met a lady, and they immediately became inseperatable. This past summer, after about a year of dating, at age 61, he married for the first time.
You know something Big T, I don't really care for a girlfriend, only 2 I've dated one had Down Syndrome and I went out with her for nearly 5 years and another had Asperger's Syndrome and I dated her for 3 years. I'll just take a girl as just being her friend but if it goes further than that then we'll see what happens afterwards.