"God", "Satan", all mythological creatures. These beliefs are falling down like flies when civilization educates itself and gets smarter.
I'm not surprised that nordic countries (norway, denmark, sweden, finland) already have a huge number of atheists and agnostics, they have the best education system in the world.
The world is absolutely random and chaotic. Just take a look at the news any given day. People die for no reason, young people are recruited as child soldiers, hundreds of people and small kids drown in floods & get crushed in earthquakes, die of hunger, etc...
You are on your own, the only one that can help you is yourself, your family and your best friends.