hello pals, will it be ok to update my system (i want to use pkm bank)

Self portrait circa. 2025

Hello pals, can you guys help me with sum. I can't play pokemon bank because it says that my region is different than my id. this is happening on my nintendo id not my pretendo id btw. Also i dont know the email, or password to my nintendo id :[ my 3ds is US too. help