since summer i have had intrusive thoughts about a serial killer. they have gotten really better and now i barely have them. the problem is whenever i mastrubate the image of the serial killer appears in my head. i can not get it out no matter how much i try. it is not very severe as yes i can mastrubate but when during the end when i am about to finish i can not do it because the killers image is in my head. i really want to remove this image no matter how hard i try. i could never live with myself if i was attracted to a serial killer. how can i overcome this? this is not a troll i promise you all.