Help! I feel like a stranger to life?

I'm 17 and I've been homeschooled all my life. All I've ever done is study. I'm about to become independent and an adult and I recently discovered I am clueless. My social skills are horrible and I don't get the way the majority of people think. I don't enjoy the NBA, Beatles, South Park, SNL, and all the stuff people enjoy. Is there something wrong with me? What should I do?