-Start your freshman year;! I’m still bitter about bad advice I got from an academic advisor my freshman year! (My college had a special year-long exchange program with a college in Japan; it’s part of the reason I decided to go there in the first place. I had taken French in high school and tested into the last semester of French, but I was planning on switching to Japanese in college. My advisor told me to finish French instead so I could get my language requirement out of the way and then start Japanese second semester. Well, I assumed he knew what he was talking about, so I took French 202 freshman year first semester. Bad! Because Japanese 101 wasn’t offered in the spring, so I had to wait until fall sophomore year, and THEN I found out that you had to have two years of college-level Japanese before you could do the exchange program. BUMMER. I ended up not finishing the Japanese sequence or studying in Japan at all, which I still regret.)
Anyway, lots of great exchange/study abroad programs DO have this requirement, so it’s best to start early!
-Start studying early if you can/have the time. It’s not necessary, but it will make it easier. This is particularly true in Japanese since you will need to learn katakana and hiragana (kana) and, eventually, kanji. The earlier you start memorizing the kana the easier it’ll be when you need them to start reading!
-Two hours a day 3 days a week is definitely an intensive class. So yes, they will cover a lot each week. You might also be required to spend time in a language lab completing assignments.
-As you might know, Japan has a rich history of entertainment media that is widely available in the U.S./Western world. If you don’t already, you might want to start consuming some Japanese media - watch Japanese television shows, movies, maybe anime, and listen to some Japanese music (like J-pop). My interest in Japanese culture was what made me want to take Japanese classes, so I had been watching and listening to Japanese media since I was around 12 (and had an interest in it earlier than that). Let me tell you it was tremendously helpful when I started the classes, because I had been listening to Japanese pronunciation for years and was familiar with some words/constructions/idioms before I even started taking the classes.
If you’ll be attending college in a large city (or even a medium-sized city) your town might have a Japan society or other cultural nonprofit that offers Japanese conversation opportunities with other language learners or native speakers. Once you get to/past the intermediate level, that’s a good opportunity to practice your speaking and listening. Sometimes they also have cultural presentations, like movie screenings, speakers, and other historical and cultural things. (In fact, your language classes might require you to do stuff like that. My husband took Spanish and he was required to do interviews with native speakers and go to Spanish art exhibits and things like that.)
Also, if you are a mnemonics kind of person, [url=<a href=“http://www.amazon.com/Kana-Pict-o-Graphix-Mnemonics-Japanese-Hiragana/dp/1880656183/ref=sr_1_1?s=books&ie=UTF8&qid=1436751075&sr=1-1&keywords=hiragana+mnemonics%5Dthis%5B/url”>http://www.amazon.com/Kana-Pict-o-Graphix-Mnemonics-Japanese-Hiragana/dp/1880656183/ref=sr_1_1?s=books&ie=UTF8&qid=1436751075&sr=1-1&keywords=hiragana+mnemonics]this[/url] book was instrumental in me learning kana very quickly. I still remember most of them and it’s been 10 years since I’ve taken Japanese 101. There’s also one for [url=<a href=“http://www.amazon.com/Kanji-Pict-O-Graphix-Over-Japanese-Mnemonics/dp/0962813702/ref=pd_bxgy_14_img_y%5Dkanji%5B/url”>http://www.amazon.com/Kanji-Pict-O-Graphix-Over-Japanese-Mnemonics/dp/0962813702/ref=pd_bxgy_14_img_y]kanji[/url] - still helpful, but a little less intuitive than the kana one, I think.
Also, [url=<a href=“http://www.amazon.com/GENKI-Integrated-Elementary-Japanese-English/dp/4789014401/ref=sr_1_11?s=books&ie=UTF8&qid=1436751049&sr=1-11&keywords=hiragana%5Dthis%5B/url”>http://www.amazon.com/GENKI-Integrated-Elementary-Japanese-English/dp/4789014401/ref=sr_1_11?s=books&ie=UTF8&qid=1436751049&sr=1-11&keywords=hiragana]this[/url] is the textbook we used and it was excellent! If that’s not the one you use in class it might be useful as a supplemental textbook.