Well, you can drink another cup of coffee and spend the next few hours  cramming and practicing, but believe it or not, you might be better off closing the books, putting away the music, and going to sleep.
Bé, pots beure un altre cafè i passar les hores següents estudiant i practicant, però, ho creguis o no, seria millor que tanquessis els llibres, deixessis la música i anessis a dormir.