With 8 out of 10 of our thoughts being negative, we humans are trapped in self-doubt and continual cognitive catastrophes. Mark shares his personal struggles with self-doubt, self-loathing and how the uninvited guest continually shares stories with him from his 8 drawer 'bad news filing cabinet'. He also gives some advice on how to shut the door on the uninvited guest and start to fill up your 2 drawer 'good news filing cabinet'.