I studied at University of Canterbury (UC) in New Zealand for 10 months last year.  Unfortunately, New Zealand has not been a popular destination for Japanese exchange students.  I was actually the first student who went there from Waseda.  If you go there, study there and live there, you can easily find that New Zealand is the country full of attractive and impressive aspects.  And I am sure you will be fascinated by New Zealand even after you come back to Japan, just like me!
　　 Now I will tell you the reason why I wanted to study abroad.  I just wanted to live abroad for a year or so.  Simple, isn't it?  But making it happen was not as simple as that.  When I applied for the first time, I was not accepted because my TOEFL score was not sufficient.  I did not give up my dream to study abroad; I applied again with merely adequate score of TOEFL that I could get after trying for several times.  And finally I obtained the chance to study at UC.  Now you can see the most important factor to realise your dream to study abroad, can't you?  Yes, it is your "persistency".
　　 Lectures at UC were very interesting and entertaining, but at the same time they were very hard.  It was one of my routines to study in the library up until 10 p.m., its closing time.  I wrote more than 20 essays over the year.  Now, you may wonder how I managed all those.  I could do those because the lectures were fascinating, and because every single lecturer was making a studious effort to offer students the best environment to study.  You don't have to worry about the level of textbooks written in English.  I don't think they are as difficult as what you are now thinking of.  Rather, there are even some cases that you can read them more easily than Japanese ones because the languages used in them are usually very clear, precise, and what is more, the technical terms are originally in English, aren't they?
　　The days with more than 100 "dorm mates" were also very interesting.  In my dormitory, there were students from more than 10 countries together with the local students called "Kiwis", or New Zealanders.  Conversations with friends at and after dinner, chats with friends who didn't have any lectures in the daytime on the grass in a quad…, every moment was so precious.  Of course, as you can guess, there were some days when I never wanted to go out from my room because I was up against the high walls of language and cultural differences.  Looking back now, however, it was only very momentary.  You might feel the same way.  But with your steady effort and a little courage to talk with people there, the troubles will be gone very soon!
　　 I recommend you to go on some trips during the three breaks.  I myself travelled in New Zealand for a couple of months in total.  New Zealand is full of aboriginal nature.  It is worth travelling.  Don't be a fool to miss the chance to travel in New Zealand!  You should know about the wonderful scenery in New Zealand, thanks to a certain movie titled "The Lord of blah-blah".  Anyway, the nature is great, definitely!  In addition, I recommend you to add some spices to your daily life.  I was learning the piano from a professor of the music department there.  I could enjoy not only high-quality lessons but also the customs and ways of living of local people in New Zealand through having dinner with my teacher and his wife.  They are all my irreplaceable memories.
　　 Therefore, let me recommend you to study in New Zealand.  Study for your TOEFL tests a bit harder, and you will be able to get a wonderful year of study abroad, I promise!!