barok, I think it's not so easy to get used to it, but just try. Hey Mogski..LOL same for me with English!! When i took a TOEIC (Test Of English International Conversation) English exam last September, i got lost while the tapes were played for listening test.
Just practice and try to have opportunities to talk in Japanese. It works! And don't be affraid to speak Japanese over the phone. If you dont understand what the other says, you can ask and people can be patient - that's what i have been learning in my daily life through talking over the phone in English.
As to pronounciation, i think it depends on your mother tongue. If English were your mother tongue, maybe hard while you are a beginner for Japanese. We write like Ra Ri Ru Re Ro ( using "R"), but the pronounciation for them are more like La Li Lu Le Lo. Not the same, but closer. Only 5 single vowels - A E I O U. Pronounce them clearly. Double vowels are sometimes may be hard (OU for arigatOU, AI for gozAImashita etc). Sometimes when you try to pronounce " Arigatou gozaimashita", it sounds like " ArigaTU goJImashita". But works. When you can't pronounce Japanese correctly, Japanese people may laugh/grin/giggle, but it never means to make fun of you. Don't mind. It just sounds funny.
The most thing i worry about you barok is Kanji sign boards when you get around

As NoFakie said, i think it works to read Japanese stuff. Long way....I try to read Japan Times, not sure when the day will come when i can read it without dictionary LOL.
Good luck