How to be that girl...?

How is one supposed to be that Impulsive head first free spirit, and at times, be inhumanly calm? I got the free spirit... And Impulsive is just... My middle name... But Calm is not one of my qualities. Its hard to explain me and my sibs, But when we go to town, Everyone knows our names, and we have all been on the front page. I guess you could call us "Head turn, Free spirit, Impulsive brats" If you wanted, but as you notice "Calm" is not one of those. How do you add calm to the above list? (I tried my best to portray what we were.) Thanks for all answers! (oh and I put this in beauty and stuff cuz I couldn't find anything else, and I believe cal and impulsive make beauty)