By having a digital calendar, you can keep track of all your lessons, when and where they take place. You can keep track of all your activities, so you don't forget any of them. Taking all the pressure of having to remember any of them.
Music Improves Focus and Concentration. Classical or instrumental music with guitars or other string instruments might be less distracting. Listen to songs you enjoy and not just for the sake of having something on, as long as it's not too fast or wordy.
The Pomodoro technique is useful for studying because your brain is not made to learn new information in one long continuous bout, and taking short breaks after 25 minutes has been proven to be a good way to take a break and stay fresh while studying.