Perhaps you don't need telling that self-help books, the modern-day apotheosis of the quest for happiness, are among the things that fail to make us … - Oliver Burkeman

The harder you struggle to fit everything in, the more of your time you'll find yourself spending on the least meaningful things. … The reason for this effect is straightforward: the more firmly you believe it ought to be possible to find time for everything, the less pressure you'll feel to ask whether any given activity is the best use for a portion of your time. Whenever you encounter some potential new item for your to-do list or your social calendar, you'll be strongly biased in favor of accepting it, because you'll assume you needn't sacrifice any other tasks or opportunities in order to make space for it … If you never stop to ask yourself if the sacrifice is worth it, your days will automatically begin to fill not just with more things, but with more trivial or tedious things, because they've never had to clear the hurdle of being judged more important than something else.

What is worry, at its core, but the activity of a mind attempting to picture every single bridge that might possibly have to be crossed in future, then trying to figure out how to cross it?

He should think of himself more 'like a frog', she said. Shapiro was wondering whether to feel insulted when she explained: 'You should sun yourself on a lily-pad until you get bored; then, when the time is right, you should jump to a new lily-pad and hang out there for a while. Continue this over and over, moving in whatever direction feels right.