Fighting ghosts feels like an endless battle, doesn't it? One you cannot win? Well, I'll let you in on a little secret: ghosts are not invincible. They fear friendship, hope, joy and above all else, love. These will be your weapons and the people who care about you your army.
Who said you can't call your mom? She lives in your heart. So, whenever you want to reach her, go ahead. She will listen.