It is so easy to go numb in the face of challenges. Especially big ones, and especially at work. Everything seems so complicated and interconnected that we fool ourselves into thinking that we can't make a difference.
Even those at the top of their organisations feel the same way. I heard recently of an article claiming that Chief Execs experience the same Monday feeling of dread as their staff do. No one is immune to the feeling of powerlessness.
But we have much more agency than we fool ourselves into believing. Every challenge, no matter how large or complicated, is met one step at a time. Someone has to take that next step. It might as well be us.