Nah, basically nobody has ambitions before 13, so you didn't have a choice. Just make due with the time you have right now. You'll wish you had if you don't right now, you will never remember procrastination or escapism, but you will remember your productivity. U can talk with parents too and maybe other japanese descendants if they're common in the area.
My tips 4 language learning:
Focus on le script (I think japanese has like a phonetic script and a logographic script).
Focus on the beginner grammar at first, use some free course if you want, but accept that it will never bring you to fluency.
Focus on consuming media, comic books, manga, vocab videos, glosbe, podcasts, chats, etc are really good. Find a friend or someone to talk to in the language.
Use glosbe, wikitionary, and chatgpt for making immediate sense of vocab, gender, conjugations, etc. I have no idea what that's like for japanese doe.
Use anki to create flashcards, but always learn vocab in the context of a sentence or similar/derived words, or you won't remember it.
Polyglot club's wiki has a lot of pages for learning vocab in a single context, like color, foods, animals. Other random sites are good for that too. Just look up visual dictionaries.
Try forming sentences in the language on ur own.