Ok to give an extreme example I had a sad case of a mate whose wife basically ruined his life by forcing him to move from Australia back to England. He just couldn't move past it. He used to update his Facebook many times a week saying why did he ever go back. I tried to help the guy but it was pointless because he was stuck in a loop in his head. There was no room for any new thoughts or behaviours. If you constantly find yourself obsessing about your problems or your thoughts going in a circle then you need professional help.
