There are tons of ways of self studying on your own. Watch video lectures, or get your hands on some textbooks and read through it yourself. Solve the problems in the book, too. How old are you? What exactly do you like?
You could also try Open Yale Courses. They're pretty much just selected, free lectures from Yale profs available to anyone who has the desire to watch them. Khan is good, but OYC might allow you to watch something a bit different than Sal