One of the funnest things about actually learning Japanese (actual Japanese, not anime Japanese) is going back and watching an anime in JP and realizing just how fucking basic, kiddy, and exaggerated the dialogue is. I shit you not that learning Japanese from anime is like learning English from He-Man. Among the many resources there are out there to learn the language, anime is probably the worst. You are much better off sticking to games, books, vn's, podcasts, music, and manga and I have no idea why weebs who don't even know the language place it on such a pedestal.
Like, seriously, FFX JP voice track sucks compared to even the English voice track. That's all you need to know.