hmmmm .... PTSD? he's probably just in the same existential funk 90% of the rich world is in. action is the way out, whatever that means for you.
Action is good, but if the emotional state is too bad, you can't just act your way out of it. You'll just overreach and break down again. You have to metabolize your emotions. For example through grief and acceptance.
I've tried action and many other things for decades. What finally freed me was crying it out for a few weeks, and now I'm fine. Now I can take action to get out of a funk.