Don't put too much stock in what some kid on TV says. Teenagers have long believed that "everybody is doing it" without actually knowing. Since it's mysterious, taboo, and cool, vastly more people talk about it than actually do it. The truth is that your opportunities at that age are very dependent on circumstances not directly related to appearance or personality, like parental interference.
Further, documentaries like that typically intend to have a scandalous bent to them. It doesn't matter to them whether it's objectively true, but whether it frightens parents.
Have you been trying? I don't mean that as a criticism, but rather to point out that there is a simpler explaination than appearance or personality. I assume from the fact that you're posting here that you haven't historically been proactive on the dating front, so really it's fair to say that your lack of opportunity comes from not seeking them out. Now, that decision to not seek them out probably stems from feeling insecure about your appearance or personalty (or whatever else), but whether there is actually anything particularly wrong with them is untested.
Again, I'm not criticising: this is normal for a person with social anxiety. You're probably no less attractive or personable on the whole than anyone else else here, who in turn aren't any less attractive or personable on the whole than the rest of the world. The commonality, and the real limiting factor, is insecurity.
It may not be easy to feel secure about those things, but fortunately they're changeable. Nobody's perfect, but there are extremely few problems that are truly unique or irreparable. There are always things you can do to improve social skills, appearance, and personality once you accept that your feelings about those things are the real barrier.