My LaTeX template

Today I tried going to a lecture and as expected still learned nothing. Seriously, how the heck do people learn at lectures? I mean, I can kind of understand how people learn during history or psychology lectures since those are heavy on story-telling, but there are no stories in real mathematics and so the college tradition of learning through oral instruction seems a bizarre oral-fixation, in grave need of therapy.

Anyway, I tried to at least try live-LaTeX-transcription of what's written on the board, and almost managed to do that, until I tried compiling and the thing does not compile since the tikz-cd package for drawing commutative diagrams doesn't work, and debugging spent so much time that I completely lost hope of keeping up, not that I originally had any hope of keeping up even without note-taking.

Because really, either it's too easy or it's too hard, it's never at the right speed. If it's too slow I get bored, and lose concentration. If it's too fast I can't understand and lose hope. Books never frustrate me like lectures.

Anyway, here's what I ended up using as a latex template. Might be useful for you.