Based Toby filling people with determination irl and in Undertale.

Assuming serious question, incoming wall of text, sorry. My one comment per year might as well be long, yeah? Start with Hiragana, literally google "learn hiragana", there's so many tutorials and Hiragana is baby easy so really anything works. Takes 2-3 days if you take it halfway serious. I recommend the tutorial on Tofugu.

Once you know Hiragana 100%, immediately pick up Kanji alongside grammar. You will never stop learning Kanji, so start early. Katakana is important but you'll have trouble finding it useful early on. Just make sure you can manage Katakana.

Then find your learning resource. Genki Textbooks are common choices and are what schools use. TextFugu (what I use) is a good choice if you wanna focus on learning the important parts, not relying on shortcuts, and more focus on reading/typing. Website is out dated though. Duolingo exists, idk how good it is. Don't use Rosetta Stone.

Lastly, find learning tools that work for you. Anki is a flashcards tool, very nice for daily learning. Japanese news sites are great cause you can choose grammar levels. Listening to Japanese television helps, but not anime and such.

Find a study schedule, don't take days off. Don't treat it like a chore. Don't go overboard and burn yourself out like I have a few times. Study when you're awake, review near sleep time cause brains are weird yo. Hum, that's all I wanted to say. Back to lurking.