" I am interesting in major in Math or Stat, then do I keep taking this class?"
NO .
One math class at a time is just fine in HS .
Take calc.
you will have more rigorous Math classes in college that stats will not prepare you for.
“one of my reason that I want to take many aps so it can bring my GPA goes up”
your GPA wont go up IF you get C’s in harder AP classes. And the chances are it will .
Your are not ready to take so many AP classes AND do well in them.