In some cases, exercising can increase your weight since muscle is denser and heavier (weight) than fat. So, by turning fat to muscle, your actual weight may increase. Although that likely is rare to be a bad thing. Almost always, muscle is better than fat.
I accept myself right now, this moment, the way I am, even if there are things about me, I do not like and want to change. As I grow in awareness, I discover ways to heal and release habits, traits, and patterns of thinking and behaving that do not support me or reflect my true nature.
For teens who say they want breast implants too, explain to them that they are still developing and not to stress if they are smaller than everyone else. When they are adults, they can decide for themselves.