Other girls

So i went out in service yesterday as part of my beliefs, and i was out with three girls, no big deal, right? Well, all of them are very cheerful. One is beautiful, and she was my partner, she has long dark brown hair and a pretty face. Plus all of them have small chests, i felt like a complete odd ball out. All of them are capable of speaking at the door and starting a study while im stuck struggling to go out in the first place. Then it was break time and i sat in the car when they went inside to eat. I didnt feel comfortable being the big chested friend walking around, plus, i am over weight, not by much but enough to know im bigger than they are. When they came back, i starved myself as they are blueberry bagels with cream cheese, mocha, sandwiches in front of me.
 
My goals are to get longer hair, not because Shayla has it but because it will hide my boobs, to lose 55lbs, and to be in a cleaner living space and finally get more confidence. 
 
Theres four other girls who are skinnier than me, and they're around my age, im guessing 17-19, maybe 16. If i get into their size group ill be more happier with myself, i know that sounds so adolescent, but im still a teenager.
 
Which ALSO requires not cutting to relieve jealously or anger or for punishing myself.