>>857
1) Buy/steal RTK by Heisig
2) Learn the 2042 Heisig kanji (~3 months usually if you only have an hour or two per day, but if you can spend 8 hours per day you could do it in around 1 month). Use the Anki (
http://ankisrs.net/) shared deck for RTK (downloadable within Anki) to assist you as you do this.
3) Buy/steal a decent source of Japanese basics. Japanese the Manga Way 1 is a good start.
4) Work through whichever source you've chosen, entering sentences that are sufficiently different into Anki (i.e. don't enter "Bob ate this, Jane ate this" because you're not learning anything useful there).
5) Do you have more than 600 sentences in Anki? If no, return to step 3 and work through another source. If yes, continue to step 6.
6) Buy/steal a simple manga (I recommend Yotsuba&!) and work through it. You should be able to understand a small percentage of the words, enough to figure out the rest of the sentence with the help of WWWJDIC (
http://www.csse.monash.edu.au/~jwb/cgi-bin/wwwjdic.cgi?1C). Enter new sentences into Anki as per usual. This is where you should try to start typing the definitions in your current (admittedly limited) Japanese if possible - the faster you throw away English, the better.
7) It'll take you ages to work through all of the current Yotsuba volumes, but you'll enjoy it along the way. By the time you're finished, you're ready to move onto pretty much anything (don't expect it to be easy, though). I recommend a few more easy sources to start with (maybe an RPG, or a JDrama for young audiences). Check out subs2srs for putting video sources into Anki.
8) Just repeat this process, and constantly reduce English usage even when defining an item in Anki. After a couple of years, you should be able to throw away Anki and just consume Japanese media. I'd still recommend keeping a deck going in Anki for the particularly difficult sentences.