Depression. Will try to harm my family?

Every min and every seconds violence things are coming in my mind and disturbing me and make me feel unsafe in this world and suppose if i see one person is beating another somewhere in the world or in the video then that things will continuously to come in my mind again and again and make me feel fear and unsafe and even if someone  stare at me i hate that and then i used to think to beat him in my imagination whoever stare at me... If i see someone is humiliating a person then that will comes in my min and it will save in my mind and try to disturb me... Sometimes it get too much that i used punch and slap unnecessary when i am alone thinking that i am beating someone and if i get a call from unknown number the also i get scare from that if that will be some enemy and i always worry about my family that what if someone will try to harm my family? Whenever i see some street fight i get worry about my family and myself...all over i feel unsafe in this world.