To each his own. Everyone operates differently.

Some are better off being reckless without worry. And some work better and harder when they worry. It's like getting slapped in the ass to become determined more or maintain determination to keep going and trying harder and to not give up.

Worrying by expecting the worse often helps appreciating the end result because it tends to be a hell of a lot better than expected. Yikes, past my bedtime and this hurts my brainiac!