Meditation. If you prefer not to medicate, then you can just meditate. Meditation makes use of self hypnosis so you can calm your mind down. You can meditate on self hypnosis scripts designed to ease travel anxiety. Hypnosis scripts are available online, so you can invest in some custom subliminals. You can even bring it with you on your trip.
Subliminal messages, on the other hand, penetrate the mind straight to the subconscious. Once these messages take root there, negative feedback from outside will not overpower them.
You really do not need to follow the usual routine students do-that is, study in the evening. If you learn much better early audio subliminals in the morning or in the afternoon then so be it. Determine your productive hours.
However, there are also other added benefits to making your own subliminal CDs or tapes apart from saving yourself money. By making your own recording, you call the shots. You control what goes into your head.
Practice. Basketball takes a lot of practice. It is a game of skill, not chance. And the more you practice, the more you develop and enhance your skills. Just make sure to not make your practice sessions too stressful. Practice while playing and having fun. After all, it's not always about winning. Sometimes, playing is just for the love of the game and for the extra exercise it provides to the body.
You can also use this together with subliminal messages. The subliminal messages have a special power of changing your present mind-set. The subliminal messages such as "I can beat this stress" or "I foresee myself succeeding in school" can provide you with optimism or hope, motivating you to press on.
Plenty of those who sell these materials allow you to download some samples. You can use them to assess if they are right kinds of messages to your needs.