Don’t use anime has a study guide. Its likes someone learning English by watching Teen Titans. Half the stuff being said is made up and some parts of it aren’t even English!
Dorama (Japanese Drama) is a good substitute. The main reason is because you can hear the accents, versues the voice-acting, and get a good hold of how certain things are pronounced. Also, it helps separate female speech and male speech.
Books! Japanese textbook is a good thing to have. Some are bad, but if you get a good one it could be a very useful resources. College level sounds good. Other books are good too! I have ‘bout.. 4. Things dedicated to certain parts of the language are extra helpful, such as verbs and particles.
Learn the basics. Hiragana and Katakana. The, move on to Kanji.
When on the kanji, start to work on your vocabulary. For all writing styles, learn the proper stroke order and stick with it! Don’t get used to mistakes; bad habits are hard to break.
After some time of working on vocabulary, you should start also working on the grammar. I would do it in that order because it doesn’t make much sense to know where words go if you don’t know any words. When you are at this stage, get an account on something like Lang-8. Its basically a language peer-editing site. Lots of fluent Japanese speakers and natives there willing to help you.
Also, learn 'bout the culture! Don't just go into the language, learn about the culture. The more sense you can make up the people, the more sense you can make up their language. So, subscribe to blogs and news sites (in english of course). Subscribe to anything 'bout Japan and Japanese people and the language that you like. Tofugu is a great place to start at. Japan Probe, Japan Today, Kanji-a-day, and all those places are good.
PS. When you are learning, its best to really.. Say it out-loud. Most of the words you will learn you will hear in a drama. So, say it and hear it so that you know where your weak and know where your strong.
..Don't learn from anime. Like, there are so many ppl thinkin' they speak Japanese when all they are doing is quoting Naruto. Dattebayo!
Its good to get used to speaking the language! So, try to fit as much of the language as you can into everyday life. Like, instead of saying/thinking "Oh, i'm going to be late for school" be like "i'm going to be late go 高校/university/high school/whatever".
Also, use firefox. Its has many plug in's and whatnot that are very helpful when learning 日本語 :] (Make it to where you can type in japanese..good stuff!)