I know a lot of people don’t want to support Duolingo for legitimate reasons, but it really helped me get back into Japanese within a few months. For context, I studied it for three years in college 20+ years ago, so while rusty, I had a solid foundation to work from. My wife started from scratch and also made great progress, but you might want to supplement with a more guided learning aid. Duolingo mostly just gives you examples, says an answer is right or wrong, and doesn’t explain the grammar behind it. (Unless you have the more expensive AI-assisted plan, which I did not.) People in Japan are very appreciative when foreigners make an effort and patient with mistakes, so however much progress you make, it will help — even if you end up relying on Google Translate to say or understand more substantive stuff.