Having too much time on one’s hands, as in "today I really don't have to do anything, although I know I should" often leads to inertia and procrastination, which feeds on itself: the longer one delays doing something, the harder it is to just do it. Not doing erodes self-confidence in one’s ability to achieve something through doing. Self-confidence isn’t a willed attitude – if it’s healthy and not delusional, self-confidence is based on accumulating evidence one can do what it takes for the task at hand. The longer one is out of it, the more psychological barriers to getting back in. None of this is casting aspersions on anyone. I’m not talking about “character”. I’m talking about conditions that undermine moving forward.