This works with usual anxiety - I was diagnosed with that years ago and learned how to control it so the "usual"anxiety doesn't bother me anymore .. but this doesn't involve focusing on anything or thinking about anything triggering or in some other way being reminded of triggering things. The feeling of anxiety itself is triggered - but it is completely impossible to focus on anything bc my mind is literally going so fast it cannot hold onto any one thought to watch a movie, listen to a song, or otherwise. I'm not sure how to describe it - but sometimes I even don't understand what I'm supposed to be thinkinh about.