So what happened to there being no stupid questions and no lectures given here?
16% bf is not too high, and 25 is not "way too young". Maybe in an utopian world where everyone was perfect, heck - we wouldn't need AAS then. But it so happens to be we live in a real world, with real people in real life situations asking real questions.
Is it ideal to use steroids at a young age..? -No! But neither is using/abusing it at any age.