you should learn japanese, it's easy. just get anki and the kaishi 1.5k deck, start reading children's books after you know 500 ish words, do a shit ton of listening to easy stuff like japanese with shun and nihongo con teppi podcast. i'm n3 after ~2years and i think that is fairly slow, i'm going to try for the n2 test next summer. also going to japan after you have some skills with speaking is obviously really helpful, i hired a conversation tutor once a week starting a few months back and it's been huge.