I'm really intrigued by this method because I have had a similar thought about the cause of my depression and friends of mine who share a similar form of depression. For me I noticed that when I had brief periods without depression I would have a more conscious ability to make decisions. Once I noticed that it felt empowering to act on conscious decisions I tried to make a habit of it. Unfortunately I never got too far with this mindset and slipped back into depressive behaviors and thoughts quickly. I think the idea of putting an action with this method is a fantastic idea. Currently I'm doing better with the help of medication but I can't wait to implement your snap method to help with the years of bad habits I am trying to break. Thank you for sharing and I'll give an update after putting it into practice.