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.
Potreste bere un'altra tazza di caffè, e passare le prossime ore a sgobbare e a esercitarvi, ma che ci crediate o no, fareste meglio a chiudere i libri, mettere via gli spartiti, e andare a dormire.