Want to go to University? Then go for it. It will be a good time for you to learn a lot.
Take every opportunity you can get.

I have an archive of some courses from Stellenbosch University here:

List of universities in the world – Google’s university list


University websites (sites for the courses) usually have the best content to learn about a subject you could find anywhere on the internet.

Example, MIT have started making all their courses available for free on the internet: Open CourseWare

Academic Searching

Other resources