Help with diet and exersize plan?

lots of water.if you want to gain muscle eat more proteinand more calories and google a workout routine.if trying to stay healthy and loose fat.kill the calories.throw in some cardio.since you 15 you shouldnt have to eat less.just trade hot dog far a salad.use wholegrain bread.no carbs before bed.throw some veggies in.take a vitamin and buy some fish oil pills