Workouts/Exercises for 15 year old girl?

Squats are great for legs, butt & all around. You don't say what type of gym equipment you have but use it all. Push ups, sit ups, pull ups, leg lifts all can be done without any equipment. I don't think you have to take protein shakes, just eat right. The "paleo diet" is getting good reviews lately because it's about eating healthy generally. It's basically cutting out processed foods, carbs/sugars and increasing protein in your diet. You don't need to buy any diet plan or anything.

More info at wikipedia here: https://en.wikipedia.org/wiki/Paleo_diet

You should see your doctor to get a diet/program that's tailored to you.

The obvious answer is to search on the net for exercises that relate to those specific areas. Protein shakes are a great source, however don't always taste great, I would recommend things like eggs, fresh fish, etc if you really want something that tastes great and still gives you the same amount of protein, there are a lot of sites for specific body areas all over the web, just type into a search engine exactly what you are looking to do, hope this helps :)

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