Who decides what is Right or wrong?

Been the person who had disappeared
for far to long
who decides
what's right or wrong
Deciding to live on my own terms
is the best thing I've ever done
it may be wrong for you
but is right for me
so I pulled the apple off the tree
and let the snake
pierce my veins
letting the venom take over
the high feels
just right
so I'll ride the wave
until it consumes me
and brings me straight to hell