Wondering Where to Start?

Try starting with My Experiences.  That's how I started this whole thing.  I just wanted to get a better grasp of the distortions and how they manifest in my life.  I then created my own list of mitigations.  It wasn't as structured as it is in the app.  It was simply a sheet of paper that had different scenarios that may happen on any given day, the thoughts that might pop up, and some counter thoughts.  Creating my own examples helped me to better understand the concept of cognitive distortions.