I tend to decide what to do by imagining my options and choosing the one that I feel the best about. To me, "feeling like doing something" and "deciding to do something" feel like they're the exact same thing. Maybe that's why I get confused when people talk about doing things they don't feel like or don't want to do? They have some kind of "override" in their brains that kicks in between feeling like doing something and actually doing it - which they call "willpower" - and which I'm not aware of having?