Yeah I got banned from twitch for being underaged but I meet the requirement for being underaged and using twitch I need help

Help with what? Something SMB1 related? If it's about being banned on Twitch, I don't think this is the place to seek help.

idk im just kinda freaking out

Contact Twitch about an account suspension at the link below

https://help.twitch.tv/customer/portal/emails/new?ticket[custom_category]=an%20account%20suspension&email[subject]=There...&email[body]=