Confused.

So today I got my AP scores back. I got a 5 in Art History (TYJH!), and a 5 in Chinese! Yipdeedo!
I was so excited that I had my victory dessert (a spoonful of Nutella ahha). But internally, I feel ruined. All I can say right now is that things are coming to an end. Everything has a conclusion in life.

Is it possible to feel relieved but also feel so panicked?