Making friends and enemies comes as easy as living as yourself.
When you are alone and subject to your own dark thoughts without either to pull you back to reality?
Swallowing your pride taped to a cinder block is an easier aspect.

The demons in your head aren't invaders, how can they be?
You opened the door and invited them inside in a desperate attempt of companionship,
Now you either evict them and get new visitors or you take them and mold them into new strength.