How do I know if thoughts are from the devil or just from my own mind?

Q: Dear Dan, my thought life is sometimes out of control. When I get angry or disturbed it seems like these feelings press a “replay” button on the scenes of my struggle to the point where I want to scream to make it stop. Sometimes I lose lots of sleep. The tapes in my head replay what I should have said or could have said -  what will I do in response etc. I guess my main question is how... Read More