How tall will I get

So I’m just 5,5 taller then the girls in my class problem is I’m a man...

I’m 15 I’ve known who I am for years you cant convince me it’s a phase

But I would like to know how tall I will get

My sister 18 is shorter then me which is like the only validation I get :’)

But I wanna know how tall I can grow to and what I should do to get taller asides from witchcraft (unlessyouhaveaspell)