well i know every single of u, be wrong and right but all i want to know is all of ur opinions!!

I am 11 and I am: 4'9
My father is: 5'5
My mother is 5'0
Older brother: 5'2

Medium brother is: 5'4

How tall should I b in the future? I know my family is quite short but I wanna know how tall am I gonna be!!! Hoq can I make myself grow a little more?