Why is Pluto not a planet ?

Pluto is not a planet becasue Pluto is a part of the Kuiper asteroid belt, and has not taken all of the asteroids as satellites of itself. Pluto is a dwarf planet now, because it still has more considerable mass than an asteroid or comet.

Is your Body a planet ?

My body is Saturn and yes my body is a planet Because it fits the definition, and the definition is a solid body in its own orbit around the sun that is big enough that gravity pulls it into a more or less spherical form