i have a 13 years old female cousin who has grown very much in these last years, she is around 5'4 and she is much taller than her parents who r short people.her height reaches my nose (probably she is 5'4).MY QUESTION IS ; IS MY FEMALE COUSIN GONNA BE TALLER THAN ME (I'M 19 YEARS OLD AND I'M 5'8)? AND HW TALL COULD SHE BE WHEN SHE FINISHES HER PERIOD?