Cremated or Buried???????????

I don't know. Like my sister is saying that if you cremate your body then your soul will burn and I don't want that. But I don't want to bury my body and be up at night as a ghost wondering around the world. I'm not old or anything like that. It's just then when it is your time which would you prefer and why? You don't have to tell me if it's too personal. Just go on ahead and tell me.