There's 164 regular ones. Different ones. And then the supplementary signs. And the "other signs" as well.
Fortunately, almost all of the signs are self-explanatory.
Today, I've been quite a good boy. Got up at 8, had a driving lesson at 10.15, bought Anna some literature on the way home, cleaned up the apartment after the "post-exam party" Annas class had yesterday, and now I'm studying.
Getting hungry though. Anna mentioned junk-food before going to the university, I hope she still has the cravings for it when she gets home.