Killing my parents

I dreamed that there was a Bank box thing and soon.....when we are buying groceries. THE PEOPLE BECAME A ZOMBIE APOCOLIPSE -Except to me and my family members. BUT SOON DAD SACRIFICED HIMSELF TO THE ZOMBIES TO SAVE US. When we go home.. Mom gave me some key and locked me with my baby brother in some room.....WITH THE BANK BOX. I opened the box and....Kinda like a vaccine of the zombies. some key slide in the room. I OPENED THE ROOM. nobody was there.. BUT I WOKE UP TvT

Being an only child Also any ideas for something that makes u feel free?