You can add shape to your body with weight/resistance training but you must not be eating too little calories. Shaping your body with weights requires a calorie surplus, not a calorie deficit, and you will have to lift heavy.
As far as your boobs go you can't make them bigger, but you can build your chest muscles up to naturally push them out more and make them appear firmer, perkier, and stand out more.
Actually breasts can be naturally increased with beer. Yup, beer drinking women have increased their bust size as large as a full cup. Used in the brewing of beer, hops contain a potent phytoestrogen called 8-prenylnaringenin which has 0.2-20% the potency of estradiol, the main human estrogen. link So bottoms up girls. :D