I hate to all of a sudden act like a "tough love" Dr. Phil, here, but really I can see just from this, you have an entitlement problem. You are acting as if you're "owed" an attractive girl, and that the only reason you haven't gotten one is because you haven't tried. That speaks of entitlement, to me. It's something you will have to work on. The more entitled you are... the greater your frustration as well as INERTIA will be.
I'm a half-decent looking guy, myself, and have tried some kind of online dating stuff recently. Certainly I can't get a single woman interested in me.. not even those that I'm not normally interested in. With this experience, there goes any thought I had that "if I only tried, it would be easy." Online, at least, that thinking does NOT work. Entitlement does not work. I can't imagine it would work any better in real life.
So, get over yourself! You're not owed an attractive girl because other guys are privy to them. Certainly I've believed that long enough, myself.. the only result is incredible frustration and loneliness. I'm asking you to work on this, before you fall into this "entitlement" trap so far, you can't get out.
/end Dr. Phil "tough love" speech