Im 14 and i got a visible moustache help! PLEASE!?

basically i want to start shaving my moustache and goatee but im scared that when i shave my face will go green like you see some men having green where they shave and yes i have brown skin im mostly tanned beacause my legs and arm are brown but my chest thighs are white lol my face is kind of in the middle. if i use one of them machines instead of a razor would that help???