When I was your age (I'm 16) I was about 125 and 5'5".
Although it really depends on different factors, such as how much muscle you have.
My username is an incredibly stupid pun that only I will get.
Currently working on:
Benny Gecko -- Fallout: New Vegas
Momoko Koigakubo -- Ghost Stories (Dub)
Mercenary!Brittnay -- MPGiS
Malory Archer -- Archer
Deandra -- MPGiS
Anna Cornonation Dress -- Frozen
Vader Eloha/The Queen -- OFF
Princess Suwa -- Mascot of the city of Suwa, Japan
Sewing blog: http://www.annikakisskisses.blogspot.com