I did something similar to this. But wow this is definitely a good idea and cool to do with a friend because doing it alone might be tough without courageous support.
Might I just add, when you do an exercise like this, you will absolutely start feeling all the triggers, sensations, and feelings in your stomach and chest. This is good feedback so you can dive into those, feel all of them fully, and they will run their course and eventually dissolve. Then everyday, sit in a chair, close your eyes, and feel them. That's truly surrendering and letting them go.
Remember, your views and what you have to say matter to others AND to yourself