[Keaton421]

First thing's first; forget everything you know about Romaji. It's useless. It was created so foreigners would have an easier time in Japan - NOT for a serious student, which I hope you are. Do you know what Romaji is? I hope not, cause I told you to forget everything you know about it.

Buy Genki I.

Read it aloud, practice everything out loud. I can't stress that enough. It's one thing to imagine japanese, it's another to hear it spoken to you.

Make flashcards. Anki is a good program.

Find a penpal. My girlfriend learned perfect english from doing nothing but chatting to me and penpals when she was younger.

Why do you want to learn Japanese? I try not to judge people, but those who learn it to "read manga" or "cause Japanese culture is sooo cool" usually don't get very far. There's no need and no drive to learn a 2nd language unless you plan to apply it to your life.