What if I am not really a "people person"?

You sound perfect for a career in computers. Try programming. It can be challenging and you must work alone. Take some cles in Java and XML and see if you have a natural affinity for it. Take a logic cl too. It will help you with the programming mindset. Look into other things computer related too. I hear you about not being a people person. I can only take them in small doses myself. LOL!