Okay girl brushing your teeth is VERY good. (boys like that 😉)
Things that work for me:
⭐Whitening tooth paste ; id do this every 2-5 days.
⭐Rubbing alcohol; put some a cotton ball and rub on, its great and easy. Do this as much as you'd like.
⭐Brushing your teeth with baking soda; it not my fave and it tastes gross but hey try it. do it once a week.
This is all I've tried because iI ain't spending lots of money on stuff I can do at home for no $$