If you've already taught yourself some stuff, then of course you're going to feel like you're not learning in the first half of a university program. You're not

If you've already taught yourself some stuff, then of course you're going to feel like you're not learning in the first half of a university program. You're not learning; you're waiting for those who haven't already learned to catch up. That's not to say that you won't learn though. Take a compilers course, or an OS course. Or, better yet, switch into something you don't already know a great deal about, like pure math or physics. This will soon cure you of these thoughts of not learning. You'd be crazy to not continue with your education if you can manage to do so.