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 subliminal recordings. You can even bring it with you on your trip.
You have your goals and you've visualized them in your mind. Now all it takes is for you to keep on going. The road to success is not easy, so expect resistance and distraction. But your success depends on how you fare against these distractions. The stronger you resist the distractions, the shorter the road to success will be, and the faster you'll get there.
This can be pretty hard particularly if the subjects are things you are not truly interested about in the first place, but you can still do something to make them more exciting. If you sort of audio subliminals hate science you can conduct your own experiments. The exploration can make learning more intriguing and interesting. You can also comprehend the subject matter on your own way.
They can help you achieve your desired state of mind. subliminal CDs can also help you attain the state of mind that you desire to have. Whatever it is that you are currently going through may be direct results of the current state of your mind. If these CDs are powerful enough to get rid of problems that date back to your past, they are also effective in straightening out any problems that cause you problems in the present.
Learn something new, a skill, an attitude, a technique, a story, a song, a dance, etc. Always ask related question about what you learned. Have short breaks after class.
Backwards tracking works this way as well. You are not able to understand what the backwards tracked message is actually saying when the music is played. However, if you were to play an album or song that included backwards tracking backwards, you would be able to understand the message.
There's no time limit on how long you should meditate. It can be in minutes or even hours. The most important thing is you get the outcomes you expect.