So, how did I use Opposite Action in this case? Due to the emotions I was experiencing in connection with irritability, I didn't want to leave the house. I felt like lounging in my pajamas all day feeling sorry for myself. I suppose there's a time and place for lounging in your pajamas, but I knew on some level that I needed to get out into the sun in order to feel better, so I acted opposite to the urge of retreating and sleeping and got dressed and headed out.
Thanks for reading.