i have an alter..we dont know her age..but i swear she is evil...there is no other word for it

i am a decent person, she is really nasty / rude.
i am a vegan, she eats meat on purpose.
i'm not hugely religious but i belive in God, she's basically a satanist.
there is other stuff..i cant say.


shes more like an evil "other half" than an alter..


how do i control her ?!?!